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Zhou Q, Feng X, Zhu Y, Zhou C, Chen P, Zhao S, Zhou Q, Chen M, Li D, Liu L, Zhao W, Liu Y. Discriminative analysis of aroma profiles in diverse cigar products varieties through integrated sensory evaluation, GC-IMS and E-nose. J Chromatogr A 2024; 1733:465241. [PMID: 39153428 DOI: 10.1016/j.chroma.2024.465241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 07/13/2024] [Accepted: 08/06/2024] [Indexed: 08/19/2024]
Abstract
Cigars, treasured for their rich aromatic profiles, occupy a notable segment in the global consumer market. The objective of this study was to characterize the volatile aroma compounds that shape the flavor profiles of six distinct varieties of Great Wall cigars, contributing to the understanding of cigar aroma analysis. Utilizing HS-GC-IMS and sensory evaluation, the study discerned the aroma profiles of GJ No. 6 (GJ), Animal from the Chinese zodiac (SX), Range Rover No. 3 Classic (JD), Miracle 132 (QJ), Sheng Shi No. 5 (SS), and Red 132 (HS) cigars. The analysis uncovered a spectrum of characteristic aromas, including tobacco, creaminess, cocoa, leather, baking, herbaceous, leathery, woodsy, and fruity notes. A total of 88 compounds were identified, categorized into 11 chemical classes, with their quantities varying among the cigars in a descending order of QJ, JD, GJ, SS, HS, and SX. 24 compounds, such as 2-heptanone, n-butanol, 2,6-dimethylpyrazine and 2-furfuryl methyl sulfide were considered as key differential components. The volatile components were effectively differentiated using principal component analysis (PCA), orthogonal partial least squares-discriminant analysis (OPLS-DA), and cluster analysis, revealing correlations between sensory attributes, key components, and electronic nose (E-nose). This research introduces a novel method for analyzing volatile aroma components in cigars, offering insights to enhance cigar quality and to foster the development of new products with unique aroma profiles.
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Affiliation(s)
- Quanlong Zhou
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, Shandong, 255049, China; Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xiaoxiao Feng
- Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Yiwen Zhu
- Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Changlin Zhou
- Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Panpan Chen
- Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Shilong Zhao
- Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Quanwei Zhou
- Sichuan China Tobacco Industry Co., Ltd., Chengdu, 610066, China
| | - Maoshen Chen
- Science Center for Future Foods, Jiangnan University, Wuxi, 214122, China
| | - Dongliang Li
- Sichuan China Tobacco Industry Co., Ltd., Chengdu, 610066, China
| | - Lulu Liu
- Sichuan China Tobacco Industry Co., Ltd., Chengdu, 610066, China
| | - Wenping Zhao
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, Shandong, 255049, China.
| | - Yuan Liu
- Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai, 200240, China; School of Food Science and Engineering, Ningxia University, Yinchuan, 750021, China.
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2
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Zhou C, Hu Y, Zhou Y, Yu H, Li B, Yang W, Zhai X, Wang X, Liu J, Wang J, Liu S, Cai J, Shi J, Zou X. Air and argon cold plasma effects on lipolytic enzymes inactivation, physicochemical properties and volatile profiles of lightly-milled rice. Food Chem 2024; 445:138699. [PMID: 38359566 DOI: 10.1016/j.foodchem.2024.138699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 01/17/2024] [Accepted: 02/05/2024] [Indexed: 02/17/2024]
Abstract
This study investigated the effectiveness of cold-plasma treatment using air and argon as input gas on deactivation of lipolytic enzymes in lightly-milled-rice (LMR). The results showed no significant inactivation in lipase and lipoxygenase using air-plasma. However, using argon as input gas, the residual activities of lipase and lipoxygenase were reduced to 64.51 % and 29.15 % of initial levels, respectively. Argon plasma treatment resulted in more substantial augmentation in peak and breakdown viscosities of LMR starch, suggesting an enhancement in palatability of cooked LMR with increased stickiness and decreased hardness. In contrast to the decrease in volatile compounds in LMR following argon plasma treatment, the concentrations of several prevalent aroma compounds, including 1-hexanol, 1-hexanal, and 2-pentylfuran, exhibited significant increments, reaching 1489.70 ng/g, 3312.10 ng/g, and 58.80 ng/g, respectively. These findings suggest the potential for enhancing various facets of the commercial qualities of LMR by utilizing different input gases during plasma treatment.
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Affiliation(s)
- Chenguang Zhou
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; Jiangsu Kings Luck Brewer Co Ltd, Lianshui 223411, China
| | - Yuqian Hu
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Yaojie Zhou
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Haoran Yu
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Bin Li
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Wenli Yang
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Xiaodong Zhai
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Xin Wang
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Jie Liu
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Beijing Technology and Business University, Beijing 100048, China
| | - Jing Wang
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Beijing Technology and Business University, Beijing 100048, China
| | - Siyao Liu
- School of Pharmacy, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Jianrong Cai
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Jiyong Shi
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
| | - Xiaobo Zou
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
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3
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Martinez M, Wallace HM, Searle C, Elliott B, Hosseini Bai S. Understanding chemical pathways of brown centre formation in laboratory induced and conventionally dried nut-in-shell macadamia kernels. Heliyon 2024; 10:e25221. [PMID: 38356544 PMCID: PMC10864918 DOI: 10.1016/j.heliyon.2024.e25221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 01/07/2024] [Accepted: 01/23/2024] [Indexed: 02/16/2024] Open
Abstract
World tree nut production has increased rapidly by around 50 % in the past decade; however, nut defects cause losses. For example, we know that brown centres are a major internal discolouration defect in macadamia nuts and are linked to the storage of nut-in-shell under improper conditions at high temperature and humidity. However, key chemical changes in brown centre kernels have not been described. In this study, we compared brown centres and white kernels from: 1) samples that were "induced" in the laboratory by storing at high moisture concentration; and 2) samples that were dried immediately after harvest using industry best practice methods recommended by the Australian Macadamia Society (AMS). We measured the moisture concentration, sugar concentration, fatty acid concentration, peroxide value, nutrient concentration and volatile compounds of induced and AMS samples. Our results showed that storing nut-in-shell macadamia under wet and hot conditions increased brown centres compared with samples immediately dried using the AMS regime, 10.33 % vs 1.44 %, respectively. Induced brown centres had significantly higher moisture concentrations than induced white centres. Volatile compounds including nonanoic acid, octanoic acid and 2,3 butanediol were identified and associated with brown centre formation in macadamia kernels and the initiation of lipid oxidation. Our results suggest sugar hydrolysis and the Maillard reaction are associated with brown centres both in laboratory induced samples and those formed using industry best practice drying methods. Our study suggests improper drying and storage at high temperature and high humidity are likely to result in brown centre formation. We recommend brown centre losses can be reduced by appropriate drying and storage practices.
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Affiliation(s)
- Marcela Martinez
- Centre for Planetary Health and Food Security, School of Environment and Science, Griffith University, Nathan, QLD, 4111, Australia
| | - Helen M. Wallace
- Centre for Planetary Health and Food Security, School of Environment and Science, Griffith University, Nathan, QLD, 4111, Australia
| | - Chris Searle
- MacAvo Consulting, Pashley's Road, Welcome Creek, QLD, 4670, Australia
| | - Brittany Elliott
- Centre for Planetary Health and Food Security, School of Environment and Science, Griffith University, Nathan, QLD, 4111, Australia
| | - Shahla Hosseini Bai
- Centre for Planetary Health and Food Security, School of Environment and Science, Griffith University, Nathan, QLD, 4111, Australia
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4
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Chen J, Liu Y, Yang M, Shi X, Mei Y, Li J, Yang C, Pu S, Wen J. Analysis of the Differences in Volatile Organic Compounds in Different Rice Varieties Based on GC-IMS Technology Combined with Multivariate Statistical Modelling. Molecules 2023; 28:7566. [PMID: 38005287 PMCID: PMC10673298 DOI: 10.3390/molecules28227566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 10/20/2023] [Accepted: 10/27/2023] [Indexed: 11/26/2023] Open
Abstract
In order to investigate the flavour characteristics of aromatic, glutinous, and nonaromatic rice, gas chromatography-ion mobility spectrometry (GC-IMS) was used to analyse the differences in volatile organic compounds (VOCs) amongst different rice varieties. The results showed that 103 signal peaks were detected in these rice varieties, and 91 volatile flavour substances were identified. Amongst them, 28 aldehydes (28.89~31.17%), 24 alcohols (34.85~40.52%), 14 ketones (12.26~14.74%), 12 esters (2.30~4.15%), 5 acids (7.80~10.85%), 3 furans (0.30~0.68%), 3 terpenes (0.34~0.64%), and 2 species of ethers (0.80~1.78%) were detected. SIMCA14.1 was used to perform principal component analysis (PCA) and orthogonal partial least squares discriminant analysis, and some potential character markers (VIP > 1) were further screened out of the 91 flavour substances identified based on the variable important projections, including ethanol, 1-hexanol, hexanal, heptanal, nonanal, (E)-2-heptenal, octanal, trans-2-octenal, pentanal, acetone, 6-methyl-5-hepten-2-one, ethyl acetate, propyl acetate, acetic acid, and dimethyl sulphide. Based on the established fingerprint information, combined with principal component analysis and orthogonal partial least squares discriminant analysis, different rice varieties were also effectively classified, and the results of this study provide data references for the improvement in aromatic rice varieties.
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Affiliation(s)
- Jin Chen
- Rice Research Institute, Yunnan Agricultural University, Kunming 650201, China; (J.C.); (Y.L.)
| | - Ying Liu
- Rice Research Institute, Yunnan Agricultural University, Kunming 650201, China; (J.C.); (Y.L.)
| | - Mi Yang
- Rice Research Institute, Yunnan Agricultural University, Kunming 650201, China; (J.C.); (Y.L.)
| | - Xinmin Shi
- Lincang Seed Management Station, Lincang 677000, China
| | - Yuqin Mei
- Lincang Seed Management Station, Lincang 677000, China
| | - Juan Li
- Rice Research Institute, Yunnan Agricultural University, Kunming 650201, China; (J.C.); (Y.L.)
| | - Chunqi Yang
- Rice Research Institute, Yunnan Agricultural University, Kunming 650201, China; (J.C.); (Y.L.)
| | - Shihuang Pu
- Rice Research Institute, Yunnan Agricultural University, Kunming 650201, China; (J.C.); (Y.L.)
| | - Jiancheng Wen
- Rice Research Institute, Yunnan Agricultural University, Kunming 650201, China; (J.C.); (Y.L.)
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5
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Lee JC, Yang KM, Wu CS, Chu LP, Jiang WM, Chen HC. Discussion on the Differences in Aroma Components in Different Fragrant Rice Varieties during Storage. Life (Basel) 2023; 13:2063. [PMID: 37895444 PMCID: PMC10608429 DOI: 10.3390/life13102063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 10/07/2023] [Accepted: 10/14/2023] [Indexed: 10/29/2023] Open
Abstract
Rice (Oryza sativa L.) is an important food crop in Taiwan, among which fragrant rice is highly regarded for its special aroma when cooked. During the storage of fragrant rice, the aroma components will change, which will affect the aroma quality of fragrant rice. Therefore, headspace solid-phase microextraction (HS-SPME) was used in this study, combined with gas chromatography and gas chromatography-mass spectrometry, to analyze the difference in the aroma components of Taikeng No. 4 (TK4), Tainung No. 71 (TN71), Kaohsiung No. 147 (KH147), and Taichung No. 194 (TC194) fragrant rice. A total of 28 aroma components were identified in the four varieties of fragrant rice, and the main components were all Nonanal. Among them, TK4 contains a very high content of hydrocarbons, including Tridecane and Dodecane; TN71, KH147, and TC194 contain mainly aldehydes such as Nonanal and Hexanal. During different storage times, the contents of alcohols, monoterpenes, aromatic aldehydes, and furans increased with storage time, while the content of aliphatic aldehydes decreased with storage time. After storage, the fragrant rice samples showed a tendency for the total volatile component content to decrease, with the most pronounced reduction observed in Nonanal content.
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Affiliation(s)
- Jui-Chia Lee
- Hualien District Agricultural Research and Extension Station, Ministry of Agriculture, Hualien 973, Taiwan;
| | - Kai-Min Yang
- Department of Food Science, National Quemoy University, Kinmen 892, Taiwan;
| | - Chin-Sheng Wu
- Department of Pharmacy, China Medical University Hospital, Taichung 404, Taiwan;
| | - Lee-Ping Chu
- Department of Orthopedics, China Medical University Hospital, Taichung 404, Taiwan;
| | - Wei-Miao Jiang
- Department of Cosmeceutics, China Medical University, Taichung 406, Taiwan
| | - Hsin-Chun Chen
- Department of Cosmeceutics, China Medical University, Taichung 406, Taiwan
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6
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Guo K, Zhang Y, Zhang H, Wang L, Song H, Li Z. Odor changes in breast milk during different storage temperatures and times using GC × GC-O-MS. Food Res Int 2023; 168:112792. [PMID: 37120238 DOI: 10.1016/j.foodres.2023.112792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 03/25/2023] [Accepted: 04/02/2023] [Indexed: 05/01/2023]
Abstract
Breastfeeding is generally the preferred way that most mothers will choose. It is common to store expressed breast milk in the refrigerator in many families. However, there is a phenomenon that infants may refuse to consume stored breast milk, presumably due to changes in odor. Thus, the odor changes in breast milk stored at 4 °C for 72 h and at -20 °C for 60 d were studied. Compared with fresh breast milk, 7 and 16 odor compounds were newly detected by SPME and GC × GC-O-MS when breast milk was stored at 4 and -20 °C, respectively. The concentration of (E)-2-decenal, octanal, hexanal, 1-octen-3-ol, 2-pentylfuran, lauric acid, decanoic acid and hexanoic acid significantly increased after storage at 4 °C for 36 h and -20 °C for 30 d. In addition, the proportion of acids increased, whereas that of aldehydes decreased during storage. Chemometric analysis with OPLS-DA suggested that breast milk should be stored at 4 °C for less than 36 h and at -20 °C for less than 30 d for maximum preservation of the original odors.
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Affiliation(s)
- Kunlun Guo
- Laboratory of Molecular Sensory Science, School of Food and Health, Beijing Technology and Business University, Beijing 100048, People's Republic of China
| | - Yu Zhang
- Department of Pediatrics, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, People's Republic of China
| | - Hao Zhang
- Laboratory of Molecular Sensory Science, School of Food and Health, Beijing Technology and Business University, Beijing 100048, People's Republic of China
| | - Lijin Wang
- Laboratory of Molecular Sensory Science, School of Food and Health, Beijing Technology and Business University, Beijing 100048, People's Republic of China.
| | - Huanlu Song
- Laboratory of Molecular Sensory Science, School of Food and Health, Beijing Technology and Business University, Beijing 100048, People's Republic of China.
| | - Zhenghong Li
- Department of Pediatrics, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, People's Republic of China.
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7
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Liu D, Zhang H, Yang Y, Liu T, Guo Z, Fan W, Wang Z, Yang X, Zhang B, Liu H, Tang H, Yu D, Yu S, Gai K, Mou Q, Cao J, Hu J, Tang J, Hou S, Zhou Z. Metabolome-Based Genome-Wide Association Study of Duck Meat Leads to Novel Genetic and Biochemical Insights. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2300148. [PMID: 37013465 PMCID: PMC10288243 DOI: 10.1002/advs.202300148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 02/20/2023] [Indexed: 06/19/2023]
Abstract
Meat is among the most consumed foods worldwide and has a unique flavor and high nutrient density in the human diet. However, the genetic and biochemical bases of meat nutrition and flavor are poorly understood. Here, 3431 metabolites and 702 volatiles in 423 skeletal muscle samples are profiled from a gradient consanguinity segregating population generated by Pekin duck × Liancheng duck crosses using metabolomic approaches. The authors identified 2862 metabolome-based genome-wide association studies (mGWAS) signals and 48 candidate genes potentially modulating metabolite and volatile levels, 79.2% of which are regulated by cis-regulatory elements. The level of plasmalogen is significantly associated with TMEM189 encoding plasmanylethanolamine desaturase 1. The levels of 2-pyrrolidone and glycerophospholipids are regulated by the gene expression of AOX1 and ACBD5, which further affects the levels of volatiles, 2-pyrrolidone and decanal, respectively. Genetic variations in GADL1 and CARNMT2 determine the levels of 49 metabolites including L-carnosine and anserine. This study provides novel insights into the genetic and biochemical basis of skeletal muscle metabolism and constitutes a valuable resource for the precise improvement of meat nutrition and flavor.
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Affiliation(s)
- Dapeng Liu
- Institute of Animal ScienceChinese Academy of Agricultural SciencesBeijing100193P. R. China
| | - He Zhang
- Institute of Animal ScienceChinese Academy of Agricultural SciencesBeijing100193P. R. China
| | - Youyou Yang
- Institute of Animal ScienceChinese Academy of Agricultural SciencesBeijing100193P. R. China
| | - Tong Liu
- Institute of Animal ScienceChinese Academy of Agricultural SciencesBeijing100193P. R. China
| | - Zhanbao Guo
- Institute of Animal ScienceChinese Academy of Agricultural SciencesBeijing100193P. R. China
| | - Wenlei Fan
- Institute of Animal ScienceChinese Academy of Agricultural SciencesBeijing100193P. R. China
| | - Zhen Wang
- Institute of Animal ScienceChinese Academy of Agricultural SciencesBeijing100193P. R. China
| | - Xinting Yang
- Institute of Animal ScienceChinese Academy of Agricultural SciencesBeijing100193P. R. China
| | - Bo Zhang
- Institute of Animal ScienceChinese Academy of Agricultural SciencesBeijing100193P. R. China
| | - Hongfei Liu
- Institute of Animal ScienceChinese Academy of Agricultural SciencesBeijing100193P. R. China
| | - Hehe Tang
- Institute of Animal ScienceChinese Academy of Agricultural SciencesBeijing100193P. R. China
| | - Daxin Yu
- Institute of Animal ScienceChinese Academy of Agricultural SciencesBeijing100193P. R. China
| | - Simeng Yu
- Institute of Animal ScienceChinese Academy of Agricultural SciencesBeijing100193P. R. China
| | - Kai Gai
- Institute of Animal ScienceChinese Academy of Agricultural SciencesBeijing100193P. R. China
| | - Qiming Mou
- Institute of Animal ScienceChinese Academy of Agricultural SciencesBeijing100193P. R. China
| | - Junting Cao
- Institute of Animal ScienceChinese Academy of Agricultural SciencesBeijing100193P. R. China
| | - Jian Hu
- Institute of Animal ScienceChinese Academy of Agricultural SciencesBeijing100193P. R. China
| | - Jing Tang
- Institute of Animal ScienceChinese Academy of Agricultural SciencesBeijing100193P. R. China
| | - Shuisheng Hou
- Institute of Animal ScienceChinese Academy of Agricultural SciencesBeijing100193P. R. China
| | - Zhengkui Zhou
- Institute of Animal ScienceChinese Academy of Agricultural SciencesBeijing100193P. R. China
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8
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Wang W, Smith DJ, Ngo H, Jin ZT, Mitchell AE, Fan X. Lipid Oxidation and Volatile Compounds of Almonds as Affected by Gaseous Chlorine Dioxide Treatment to Reduce Salmonella Populations. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:5345-5357. [PMID: 36946919 DOI: 10.1021/acs.jafc.3c00267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The effects of gaseous chlorine dioxide (ClO2) treatment, applied to inactivate Salmonella, on lipid oxidation, volatile compounds, and chlorate levels of dehulled almonds were evaluated during a 3 month accelerated storage at 39 °C. At treatment levels that yielded a 2.91 log reduction of Salmonella, ClO2 promoted lipid oxidation as indicated by increased peroxide values, total acid number, conjugated dienes, and thiobarbituric acid-reactive substances. Furthermore, several chlorine-containing volatile compounds including trichloromethane, 1-chloro-2-propanol, 1,1,1-trichloro-2-propanol, and 1,3-dichloro-2-propanol were identified in ClO2-treated samples. However, all the volatile chlorine-containing compounds decreased during the 3 months of storage. Chlorate (26.4 ± 5.1 μg/g) was found on the ClO2-treated samples. The amounts of non-ethanol alcohols, aldehydes, and carboxylic acids increased following ClO2 treatments. Some volatiles such as 2,3-butanediol that were present in non-treated samples became non-detectable during post-ClO2 treatment storage. Overall, our results demonstrated that gaseous ClO2 treatment promoted lipid oxidation, generation of volatiles of lipid origin, and several chlorine-containing compounds.
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Affiliation(s)
- Wenli Wang
- U. S. Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 E. Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
| | - David J Smith
- U. S. Department of Agriculture, Agricultural Research Service, Edward T. Schafer Agricultural Research Center, 1616 Albrecht Blvd., Fargo, North Dakota 58102, USA
| | - Helen Ngo
- U. S. Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 E. Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
| | - Zhonglin Tony Jin
- U. S. Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 E. Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
| | - Alyson E Mitchell
- Department of Food Science and Technology, University of California, Davis, California 95616, USA
| | - Xuetong Fan
- U. S. Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 E. Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
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9
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Effects of ultraviolet and infrared radiation absence or presence on the aroma volatile compounds in winegrape during veraison. Food Res Int 2023; 167:112662. [PMID: 37087251 DOI: 10.1016/j.foodres.2023.112662] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/26/2023] [Accepted: 03/05/2023] [Indexed: 03/11/2023]
Abstract
Light environmental factors have been identified to influence grape aromas greatly. Among them, the effect of non-visible light on grape aroma compounds has scarcely been investigated during grape growth and development. In the present study, ultraviolet (UV) or infrared (IR) radiation was eliminated in the grape bunch zone, and the grape bunches were irradiated with UV or IR light in vitro. The effect of UV and IR radiation on the grape aroma profile of the Cabernet Sauvignon variety was assessed by headspace solid phase microextraction gas chromatography mass spectrometer (HS-SPME GC-MS). A total of 16 aroma compounds were identified in the grape berries under UV radiation absence (UV-) or IR radiation absence (IR-). They were classified into aliphatic alcohols, aliphatic acids, benzenolds, aldehydes, and monoterpenes. A total of 23 aroma compounds were identified in the grape berries under UV radiation presence (UV+) or IR radiation presence (IR+), which were classified into aliphatic alcohols, aliphatic ketones, aliphatic esters, aliphatic acids, monoterpenes, aldehydes, volatile phenols, and other volatiles. Linalool and hexanal aroma compounds were the most responsive to UV- and UV+, according to OPLS-DA analysis. Hexanal was increased by UV- and decreased by UV+, thus was negatively correlated with UV radiation. Benzaldehyde and 2-decanone were also found as the main differing aroma compounds according to VIP scores in the IR- and IR+, respectively. The significant differences of aroma compounds in three UV and IR intensities were also observed by headspace gas chromatography-ion mobility spectrometry (HS-GC-IMS). The content of acetic acid, 2-methylbutanal, and pentanal were reduced with the radiation intensity increase, and the content of 2-3-butanedione, butyl acetate, and 1-hexanol was enhanced, especially with UV radiation. This study improves our understanding of the non-visible light role in volatile aroma compound accumulation and further expands on the useful wavelength for plant growth and development. Our study provides a theoretical basis for non-visible light field management and indoor plant growth applications.
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10
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Gonçalves B, Pinto T, Aires A, Morais MC, Bacelar E, Anjos R, Ferreira-Cardoso J, Oliveira I, Vilela A, Cosme F. Composition of Nuts and Their Potential Health Benefits-An Overview. Foods 2023; 12:942. [PMID: 36900459 PMCID: PMC10000569 DOI: 10.3390/foods12050942] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 02/15/2023] [Accepted: 02/16/2023] [Indexed: 02/25/2023] Open
Abstract
The possibility that nut intake may defend human health is an interesting point of view and has been investigated worldwide. Consequently, nuts are commonly promoted as healthy. In recent decades, the number of investigations proposing a correlation between nut consumption and a decrease in the risk of key chronic diseases has continued to increase. Nuts are a source of intake of fiber, and dietary fiber is associated with a reduced occurrence of obesity and cardiovascular diseases. Nuts likewise provide minerals and vitamins to the diet and supply phytochemicals that function as antioxidant, anti-inflammatory, and phytoestrogens agents and other protective mechanisms. Therefore, the main goal of this overview is to summarize current information and to describe the utmost new investigation concerning the health benefits of certain nuts.
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Affiliation(s)
- Berta Gonçalves
- CITAB, Centre for the Research and Technology of Agro-Environmental and Biological Sciences, Inov4Agro, Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production, University of Trás-of-Montes and Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal
| | - Teresa Pinto
- CITAB, Centre for the Research and Technology of Agro-Environmental and Biological Sciences, Inov4Agro, Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production, University of Trás-of-Montes and Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal
| | - Alfredo Aires
- CITAB, Centre for the Research and Technology of Agro-Environmental and Biological Sciences, Inov4Agro, Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production, University of Trás-of-Montes and Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal
| | - Maria Cristina Morais
- CITAB, Centre for the Research and Technology of Agro-Environmental and Biological Sciences, Inov4Agro, Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production, University of Trás-of-Montes and Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal
| | - Eunice Bacelar
- CITAB, Centre for the Research and Technology of Agro-Environmental and Biological Sciences, Inov4Agro, Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production, University of Trás-of-Montes and Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal
| | - Rosário Anjos
- CITAB, Centre for the Research and Technology of Agro-Environmental and Biological Sciences, Inov4Agro, Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production, University of Trás-of-Montes and Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal
| | - Jorge Ferreira-Cardoso
- CITAB, Centre for the Research and Technology of Agro-Environmental and Biological Sciences, Inov4Agro, Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production, University of Trás-of-Montes and Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal
| | - Ivo Oliveira
- CITAB, Centre for the Research and Technology of Agro-Environmental and Biological Sciences, Inov4Agro, Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production, University of Trás-of-Montes and Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal
| | - Alice Vilela
- CQ-VR, Chemistry Research Centre—Vila Real, University of Trás-os-Montes and Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal
| | - Fernanda Cosme
- CQ-VR, Chemistry Research Centre—Vila Real, University of Trás-os-Montes and Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal
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11
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Juan-Polo A, Beltrán Sanahuja A, Monedero Prieto M, Sánchez Reig C, Valdés García A, Maestre Pérez SE. Impact of UV-light irradiation on sensory properties, volatile, fatty acid, and tocopherol composition of peanuts (Arachis hypogaea L.). Lebensm Wiss Technol 2023. [DOI: 10.1016/j.lwt.2022.114247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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12
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Change in volatiles, soluble sugars and fatty acids of glutinous rice, japonica rice and indica rice during storage. Lebensm Wiss Technol 2023. [DOI: 10.1016/j.lwt.2022.114416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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13
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Kang MJ, Suh JH. Metabolomics as a tool to evaluate nut quality and safety. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2022.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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14
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Kim I, Ahn D, Choi JH, Lim JH, Ok G, Park KJ, Lee J. Changes in Volatile Compounds in Short-Term High CO 2-Treated 'Seolhyang' Strawberry ( Fragaria × ananassa) Fruit during Cold Storage. Molecules 2022; 27:molecules27196599. [PMID: 36235135 PMCID: PMC9571338 DOI: 10.3390/molecules27196599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/24/2022] [Accepted: 09/27/2022] [Indexed: 11/16/2022] Open
Abstract
'Seolhyang' strawberry is harvested before it is fully ripened and treated with CO2 to extend the shelf-life. However, the volatile changes in the 'Seolhyang' strawberry after short-term CO2 treatment have not been investigated, although the volatile profile is an important quality attribute. Herein, we investigated the effect of short-term high CO2 treatment on the changes in the composition of volatile compounds in 'Seolhyang' strawberries at two ripening stages (i.e., half-red and bright-red) during cold storage using headspace solid-phase microextraction and gas chromatography-mass spectrometry. Furthermore, the effect of CO2 treatment on fruit quality with respect to the aroma was investigated. A total of 30 volatile compounds were identified. Storage increased the volatile compound concentrations, and the total concentration of volatiles in the CO2-treated strawberries was lower than that of the untreated strawberries during storage. The production of some characteristic strawberry volatiles (e.g., 4-methoxy-2,5-dimethyl-3(2H)-furanone) was inhibited in CO2-treated strawberries. However, CO2 treatment helped maintain the concentrations of hexanal and 2-hexenal, which are responsible for the fresh odor in strawberries. Interestingly, CO2 treatment suppressed the production of off-odor volatiles, acetaldehyde, and hexanoic acid during strawberry storage. Thus, short-term CO2 treatment may help maintain the fresh aroma of strawberries during cold storage.
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Affiliation(s)
- Inhwan Kim
- Department of Food Science and Technology, Chung-Ang University, Anseong 17546, Korea
| | - Donghee Ahn
- Department of Food Science and Technology, Chung-Ang University, Anseong 17546, Korea
| | | | - Jeong-Ho Lim
- Korea Food Research Institute, Wanju 55365, Korea
| | - Gyeongsik Ok
- Korea Food Research Institute, Wanju 55365, Korea
| | - Kee-Jai Park
- Korea Food Research Institute, Wanju 55365, Korea
- Correspondence: (K.-J.P.); (J.L.)
| | - Jihyun Lee
- Department of Food Science and Technology, Chung-Ang University, Anseong 17546, Korea
- Correspondence: (K.-J.P.); (J.L.)
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15
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Liu Z, Xu L, Song P, Wu C, Xu B, Li Z, Chao Z. Comprehensive Quality Evaluation for Medicinal and Edible Ziziphi Spinosae Semen before and after Rancidity Based on Traditional Sensory, Physicochemical Characteristics, and Volatile Compounds. Foods 2022; 11:2320. [PMID: 35954084 PMCID: PMC9367921 DOI: 10.3390/foods11152320] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 07/27/2022] [Accepted: 07/28/2022] [Indexed: 11/23/2022] Open
Abstract
To comprehensively evaluate the quality of medicinal and edible Ziziphi Spinosae Semen (ZSS, the dried ripe seeds of Ziziphus jujuba var. spinosa) before and after rancidity during storage, some indicators including traditional sensory properties, physicochemical characteristics, and volatile compounds were analyzed. As a result, compared with the normal samples, the rancid samples of ZSS produced a darker color, a bitter taste, and an irritating odor, increased moisture content, electrical conductivity, fatty oil content, and acid value, and decreased water- and alcohol-soluble extract contents and pH value. Among them, the acid value had significant difference (p < 0.01) from 3.90 of normal ZSS to 18.68 mg/g of rancid ZSS. A total of 39 volatile compounds were identified in samples, including 20 in normal ZSS and 38 compounds in rancid ZSS. Nineteen common compounds were identified in normal and rancid samples. Among them, the content of 10 compounds such as δ-limonene, (R,R)-2,3-butanediol, and (R,S)-2,3-butanediol was decreased but that of nine compounds such as acetic acid, n-octanoic acid, and n-nonanoic acid was increased in rancid ZSS. Nineteen unique compounds such as β-phellandrene, α-pinene, and 3-carene were detected and only one compound, δ-cadinene, was not detected in rancid ZSS. In addition, eight short-chain organic acids, acetic, propanoic, butanoic, pentanoic, hexanoic, heptanoic, octanoic, and nonanoic acids, were new products in rancid ZSS, and it was speculated that the production of a series of organic acids might be the material basis of irritating odor after normal ZSS became rancid. This is the first report that a series of short-chain organic acids have been found in a rancid substance. In conclusion, there was a significant difference between normal and rancid ZSS. These indicators could be used as an early warning for judging the rancidity phenomenon of medicinal and edible ZSS. In addition, this is the first comprehensive evaluation about the rancidity process of a medicinal and edible substance.
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Affiliation(s)
| | | | | | | | | | | | - Zhimao Chao
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; (Z.L.); (L.X.); (P.S.); (C.W.); (B.X.); (Z.L.)
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16
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Comparative assessment of compositional constituents and antioxidant effects in ginseng sprouts (Panax ginseng) through aging and fermentation processes. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113644] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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17
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Luo KK, Huang G, Mitchell AE. Acceleration of lipid oxidation in raw stored almond kernels in response to postharvest moisture exposure. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:1155-1164. [PMID: 34329485 PMCID: PMC9291489 DOI: 10.1002/jsfa.11452] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/08/2021] [Accepted: 07/30/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Almonds are an important crop in California, and increased yields necessitate that dried in-hull almonds are stored in the field for longer periods, increasing the potential for postharvest moisture exposure (e.g., rain, fog). Processors are increasingly drying these 'wet' almonds to a moisture content of <6% using low heat before the hulling and shelling process in order to reduce mechanical damage to the nutmeat. To date, there is no information on the impact that moisture exposure and drying prior to hulling and shelling has on lipid oxidation and storage shelf life of raw almonds. RESULTS Raw almonds exposed to ≤8% moisture and subsequently dried (MEx) and almonds not exposed to moisture exposure (≤4% moisture; control) were stored under accelerated shelf life conditions and evaluated monthly over 12 months for free fatty acid (FFA) value, peroxide value (PV), and headspace volatiles. At 12 months of accelerated storage, MEx almonds have 1.4 times higher FFA and 3.5 times higher PV than the control, indicating significant oxidative damage. MEx almonds also demonstrated higher levels of headspace volatile compounds related to lipid oxidation (i.e., hexanal, octanal, hexanoic acid) throughout storage. CONCLUSION Drying almonds exposed to postharvest moisture prior to storage results in a higher degree of lipid oxidation during storage and a significant reduction in shelf life. © 2021 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Kathleen K Luo
- Department of Food Science and TechnologyUniversity of California, DavisDavisCAUSA
| | | | - Alyson E Mitchell
- Department of Food Science and TechnologyUniversity of California, DavisDavisCAUSA
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18
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Guo X, Schwab W, Ho CT, Song C, Wan X. Characterization of the aroma profiles of oolong tea made from three tea cultivars by both GC-MS and GC-IMS. Food Chem 2021; 376:131933. [PMID: 34971890 DOI: 10.1016/j.foodchem.2021.131933] [Citation(s) in RCA: 83] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 11/12/2021] [Accepted: 12/20/2021] [Indexed: 12/25/2022]
Abstract
Tea cultivar is crucial for oolong tea aroma quality. However, the aroma characteristics of oolong tea made from different cultivars have rarely been studied. The aroma profiles of fresh tea leaves and oolong teas derived from Shuixian (SX), Huangmeigui (HMG) and Zimudan (ZMD) cultivars were comprehensively analyzed by gas chromatography-mass spectrometry, gas chromatography-ion mobility spectrometry (GC-IMS), sensory evaluation and odor activity value (OAV) determination. 12 volatiles (OAV>1) contributed to the overall aroma, of which benzeneacetaldehyde (OAV 2.14) and 3,5-diethyl-2-methylpyrazine (OAV 1.25) were the aroma-active compounds for HMG tea. Significantly more volatiles and stronger floral odor were from HMG and ZMD than the SX tea. Moreover, popcorn-like, creamy odors with high-intensity, and caramel-like odor were only recorded in HMG and ZMD samples. Additionally, 27 volatiles were identified by GC-IMS only, indicating the benefits of combined method for a better understanding of the impact of cultivars on tea aroma profiles.
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Affiliation(s)
- Xiangyang Guo
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang Ave W, Hefei, Anhui 230036, People's Republic of China; College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China; International Joint Laboratory on Tea Chemistry and Health Effects, Anhui Agricultural University, 130 Changjiang Ave W, Hefei, Anhui 230036, People's Republic of China
| | - Wilfried Schwab
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang Ave W, Hefei, Anhui 230036, People's Republic of China; International Joint Laboratory on Tea Chemistry and Health Effects, Anhui Agricultural University, 130 Changjiang Ave W, Hefei, Anhui 230036, People's Republic of China; Biotechnology of Natural Products, Technische Universität München, Liesel-Beckmann-Str. 1, 85354 Freising, Germany
| | - Chi-Tang Ho
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang Ave W, Hefei, Anhui 230036, People's Republic of China; International Joint Laboratory on Tea Chemistry and Health Effects, Anhui Agricultural University, 130 Changjiang Ave W, Hefei, Anhui 230036, People's Republic of China; Department of Food Science, Rutgers University, New Brunswick, NJ 08901, USA.
| | - Chuankui Song
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang Ave W, Hefei, Anhui 230036, People's Republic of China; International Joint Laboratory on Tea Chemistry and Health Effects, Anhui Agricultural University, 130 Changjiang Ave W, Hefei, Anhui 230036, People's Republic of China
| | - Xiaochun Wan
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang Ave W, Hefei, Anhui 230036, People's Republic of China; International Joint Laboratory on Tea Chemistry and Health Effects, Anhui Agricultural University, 130 Changjiang Ave W, Hefei, Anhui 230036, People's Republic of China.
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19
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Han N, Kim I, Kim J, Lee J. Tissue-specific distribution of primary and secondary metabolites of Baemoochae (×Brassicoraphanus) and its changes as a function of developmental stages. Food Res Int 2021; 150:110796. [PMID: 34865811 DOI: 10.1016/j.foodres.2021.110796] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 10/12/2021] [Accepted: 10/28/2021] [Indexed: 10/19/2022]
Abstract
The distribution and changes in the primary and secondary metabolite profiles of Baemoochae, an inter-generic hybrid of Chinese cabbage and radish, during the plant's developmental stages were investigated. Metabolites were analyzed using gas chromatography-mass spectrometry (GC-MS) and ultra-high-performance liquid chromatography-electrospray ionization-quadrupole time-of-flight (UHPLC-ESI-qTOF MS). Free sugar, organic acid, and amino acid composition depended on the tissue type and developmental stage of Baemoochae. For example, glucose and alanine levels were higher in mature leaves than in young leaves; citric acid content in mature roots was lower than that in young roots. Several glucosinolates were identified for the first time in Baemoochae. Glucoraphasatin was predominant in both leaves and roots, regardless of plant maturity. Total glucosinolate content was significantly higher in roots than in leaves and in mature than in young plants. The roots of mature Baemoochae could be used as a rich source of glucosinolates, with several potential health-promoting effects.
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Affiliation(s)
- Narae Han
- Department of Plant Science and Technology, Chung-Ang University, Anseong 17546, Republic of Korea.
| | - Inhwan Kim
- Department of Food Science and Technology, Chung-Ang University, Anseong 17546, Republic of Korea.
| | - Jongkee Kim
- Department of Plant Science and Technology, Chung-Ang University, Anseong 17546, Republic of Korea.
| | - Jihyun Lee
- Department of Food Science and Technology, Chung-Ang University, Anseong 17546, Republic of Korea.
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20
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Abstract
The evaluation of volatiles in food is an important aspect of food production. It gives knowledge about the quality of foods and their relationship to consumers’ choices. Alcohols, aldehydes, acids, esters, terpenes, pyrazines, and furans are the main chemical groups that are involved in aroma formation. They are products of food processing: thermal treatment, fermentation, storage, etc. Food aroma is a mixture of varied molecules. Because of this, the analysis of aroma composition can be challenging. The four main steps can be distinguished in the evaluation of the volatiles in the food matrix as follows: (1) isolation and concentration; (2) separation; (3) identification; and (4) sensory characterization. The most commonly used techniques to separate a fraction of volatiles from non-volatiles are solid-phase micro-(SPME) and stir bar sorptive extractions (SBSE). However, to study the active components of food aroma by gas chromatography with olfactometry detector (GC-O), solvent-assisted flavor evaporation (SAFE) is used. The volatiles are mostly separated on GC systems (GC or comprehensive two-dimensional GCxGC) with the support of mass spectrometry (MS, MS/MS, ToF–MS) for chemical compound identification. Besides omics techniques, the promising part could be a study of aroma using electronic nose. Therefore, the main assumptions of volatolomics are here described.
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21
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Hossain MI, Mizan MFR, Roy PK, Nahar S, Toushik SH, Ashrafudoulla M, Jahid IK, Lee J, Ha SD. Listeria monocytogenes biofilm inhibition on food contact surfaces by application of postbiotics from Lactobacillus curvatus B.67 and Lactobacillus plantarum M.2. Food Res Int 2021; 148:110595. [PMID: 34507740 DOI: 10.1016/j.foodres.2021.110595] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 07/02/2021] [Accepted: 07/07/2021] [Indexed: 12/24/2022]
Abstract
Owing to their preservative and antimicrobial effects, postbiotics (metabolic byproducts of probiotics) are promising natural components for the food industry. Therefore, the present study aimed to investigate the efficacy of postbiotics collected from isolated Lactobacillus curvatus B.67 and Lactobacillus plantarum M.2 against Listeria monocytogenes pathogens in planktonic cells, motility, and biofilm states. The analysis of the metabolite composition of the postbiotics revealed various organic acids, along with a few well-known bacteriocin-encoding genes with potential antimicrobial effects. Postbiotics maintained their residual antimicrobial activity over the pH range 1-6 but lost all activity at neutral pH (pH 7). Full antimicrobial activity (100%) was observed during heat treatment, even under the autoclaving condition.Minimum inhibitory concentration (MICs) of L. curvatus B.67 and L. plantarum M.2 against L. monocytogenes were 80 and 70 mg/mL, respectively. However, four sub-MICs of the postbiotics (1/2, 1/4, 1/8, and 1/16 MIC) were tested for inhibition efficacy against L. monocytogenes during different experiment in this study. Swimming motility, biofilm formation, and expression levels of target genes related to biofilm formation, virulence, and quorum-sensing were significantly inhibited with increasing postbiotics concentration. Postbiotics from L. plantarum M.2 exhibited a higher inhibitory effect than the postbiotics from L. curvatus B.67. Nonetheless, both these postbiotics from Lactobacillus spp. could be used as effective bio-interventions for controlling L. monocytogenes biofilm in the food industry.
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Affiliation(s)
- Md Iqbal Hossain
- Department of Food Science and Technology, Advanced Food Safety Research Group, Chung-Ang University, 72-1 Nae-Ri, Daedeok-Myun, Anseong, Gyunggido 456-756, Republic of Korea
| | - Md Furkanur Rahaman Mizan
- Department of Food Science and Technology, Advanced Food Safety Research Group, Chung-Ang University, 72-1 Nae-Ri, Daedeok-Myun, Anseong, Gyunggido 456-756, Republic of Korea
| | - Pantu Kumar Roy
- Department of Food Science and Technology, Advanced Food Safety Research Group, Chung-Ang University, 72-1 Nae-Ri, Daedeok-Myun, Anseong, Gyunggido 456-756, Republic of Korea
| | - Shamsun Nahar
- Department of Food Science and Technology, Advanced Food Safety Research Group, Chung-Ang University, 72-1 Nae-Ri, Daedeok-Myun, Anseong, Gyunggido 456-756, Republic of Korea
| | - Sazzad Hossen Toushik
- Department of Food Science and Technology, Advanced Food Safety Research Group, Chung-Ang University, 72-1 Nae-Ri, Daedeok-Myun, Anseong, Gyunggido 456-756, Republic of Korea
| | - Md Ashrafudoulla
- Department of Food Science and Technology, Advanced Food Safety Research Group, Chung-Ang University, 72-1 Nae-Ri, Daedeok-Myun, Anseong, Gyunggido 456-756, Republic of Korea
| | - Iqbal Kabir Jahid
- Department of Microbiology, Jashore University of Science and Technology, Bangladesh
| | - Jihyun Lee
- Department of Food Science and Technology, Chung-Ang University, Anseong 17546, Republic of Korea
| | - Sang-Do Ha
- Department of Food Science and Technology, Advanced Food Safety Research Group, Chung-Ang University, 72-1 Nae-Ri, Daedeok-Myun, Anseong, Gyunggido 456-756, Republic of Korea.
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22
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Volatile Profile of Nuts, Key Odorants and Analytical Methods for Quantification. Foods 2021; 10:foods10071611. [PMID: 34359483 PMCID: PMC8308100 DOI: 10.3390/foods10071611] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 07/08/2021] [Accepted: 07/09/2021] [Indexed: 11/19/2022] Open
Abstract
The presence of nuts in diets has notably increased due to their composition, and the presence of antioxidants and their unsaturated fatty acid profile has led to a considerable increase in their consumption. The volatile profile of nuts is important from different points of view. It affects consumer’s selection, influences raw material selection for the production of composite foods, dictates variety selection in breeding programs, and, from a quality perspective, its changes can indicate food degradation or alteration. A review of the published bibliography concerning the determination of volatiles in nuts has been carried out. The information retrieved has been divided into four main sections. First, a discussion on the main volatiles present in nuts is performed; next, a revision of the methods used to determine the volatiles is presented; and, finally, two sections describing how harvesting conditions, healthy state and the thermal treatment of nuts modifies their volatile profile are added. Analysis of the published bibliography denoted the complexity of volatile determination and the different variables that can modify the compounds present in the volatile fraction of nuts.
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Ouzir M, Bernoussi SE, Tabyaoui M, Taghzouti K. Almond oil: A comprehensive review of chemical composition, extraction methods, preservation conditions, potential health benefits, and safety. Compr Rev Food Sci Food Saf 2021; 20:3344-3387. [PMID: 34056853 DOI: 10.1111/1541-4337.12752] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 03/07/2021] [Accepted: 03/12/2021] [Indexed: 12/11/2022]
Abstract
Almond oil, a rich source of macronutrients and micronutrients, is extracted for food flavorings and the cosmetics industry. In recent years, the need for high-quality and high-quantity production of almond oil for human consumption has been increased. The present review examines the chemical composition of almond oil, storage conditions, and clinical evidence supporting the health benefits of almond oil. From the reviewed studies, it appears that almond oil contains a significant proportion of poly and monounsaturated fatty acids, with oleic acid as the main compound, and an important amount of tocopherol and phytosterol content. Some variations in almond oil composition can be found depending on the kernel's origin and the extraction system used. Some new technologies such as ultrasonic-assisted extraction, supercritical fluid extraction, subcritical fluid extraction, and salt-assisted aqueous extraction have emerged as the most promising extraction techniques that allow eco-friendly and effective recovery of almond oil. This safe oil was reported by several clinical studies to have potential roles in cardiovascular risk management, glucose homeostasis, oxidative stress reduction, neuroprotection, and many dermatologic and cosmetic applications. However, the anticarcinogenic and fertility benefits of almond oil have yet to be experimentally verified.
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Affiliation(s)
- Mounir Ouzir
- Group of Research in Physiology and Physiopathology, Department of Biology, Faculty of Sciences, Mohammed V University in Rabat, Rabat, Morocco.,Higher Institute of Nursing Professions and Health Techniques, ISPITS Beni Mellal, Beni Mellal, Morocco
| | - Sara El Bernoussi
- Laboratory of Materials, Nanotechnology and Environment (LMNE), Department of Chemistry, Faculty of Sciences, Mohammed V University in Rabat, Rabat, Morocco
| | - Mohamed Tabyaoui
- Laboratory of Materials, Nanotechnology and Environment (LMNE), Department of Chemistry, Faculty of Sciences, Mohammed V University in Rabat, Rabat, Morocco
| | - Khalid Taghzouti
- Group of Research in Physiology and Physiopathology, Department of Biology, Faculty of Sciences, Mohammed V University in Rabat, Rabat, Morocco
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24
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Gao C, Li Y, Pan Q, Fan M, Wang L, Qian H. Analysis of the key aroma volatile compounds in rice bran during storage and processing via HS-SPME GC/MS. J Cereal Sci 2021. [DOI: 10.1016/j.jcs.2021.103178] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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25
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Hossain MI, Kim K, Rahaman Mizan MF, Toushik SH, Ashrafudoulla M, Roy PK, Nahar S, Jahid IK, Choi C, Park SH, Ha SD. Comprehensive molecular, probiotic, and quorum-sensing characterization of anti-listerial lactic acid bacteria, and application as bioprotective in a food (milk) model. J Dairy Sci 2021; 104:6516-6534. [PMID: 33741164 DOI: 10.3168/jds.2020-19034] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Accepted: 12/30/2020] [Indexed: 12/13/2022]
Abstract
Listeria monocytogenes is a major foodborne pathogen that adversely affects the food industry. In this study, 6 anti-listerial lactic acid bacteria (LAB) isolates were screened. These anti-listerial LAB isolates were identified via 16S rRNA gene sequencing and analyzed via repetitive extragenic palindromic-PCR. Probiotic assessment of these isolates, comprising an evaluation of the antibiotic susceptibility, tolerance to lysozyme, simulated gastric and intestinal juices, and gut conditions (low pH, bile salts, and 0.4% phenol), was carried out. Most of the isolates were resistant to streptomycin, vancomycin, gentamycin, kanamycin, and ciprofloxacin. All of the isolates were negative for virulence genes, including agg, ccf, cylA, cylB, cylLL, cylLS, cylM, esp, and gelE, and hemolytic activity. Furthermore, autoinducer-2 (a quorum-sensing molecule) was detected and quantified via HPLC with fluorescence detection after derivatization with 2,3-diaminonaphthalene. Metabolites profiles of the Lactobacillus sakei D.7 and Lactobacillus plantarum I.60 were observed and presented various organic acids linked with antibacterial activity. Moreover, freeze-dried cell-free supernatants from Lb. sakei (55 mg/mL) and Lb. plantarum (40 mg/mL) showed different minimum effective concentration (MEC) against L. monocytogenes in the food model (whole milk). In summary, these anti-listerial LAB isolates do not pose a risk to consumer health, are eco-friendly, and may be promising candidates for future use as bioprotective cultures and new probiotics to control contamination by L. monocytogenes in the food and dairy industries.
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Affiliation(s)
- Md Iqbal Hossain
- Department of Food Science and Technology, Advanced Food Safety Research Group, Brain Korea 21 Plus, Chung-Ang University, Anseong, 17546, South Korea
| | - Kyeongjun Kim
- Department of Food Science and Technology, Advanced Food Safety Research Group, Brain Korea 21 Plus, Chung-Ang University, Anseong, 17546, South Korea
| | - Md Furkanur Rahaman Mizan
- Department of Food Science and Technology, Advanced Food Safety Research Group, Brain Korea 21 Plus, Chung-Ang University, Anseong, 17546, South Korea
| | - Sazzad Hossen Toushik
- Department of Food Science and Technology, Advanced Food Safety Research Group, Brain Korea 21 Plus, Chung-Ang University, Anseong, 17546, South Korea
| | - Md Ashrafudoulla
- Department of Food Science and Technology, Advanced Food Safety Research Group, Brain Korea 21 Plus, Chung-Ang University, Anseong, 17546, South Korea
| | - Pantu Kumar Roy
- Department of Food Science and Technology, Advanced Food Safety Research Group, Brain Korea 21 Plus, Chung-Ang University, Anseong, 17546, South Korea
| | - Shamsun Nahar
- Department of Food Science and Technology, Advanced Food Safety Research Group, Brain Korea 21 Plus, Chung-Ang University, Anseong, 17546, South Korea
| | - Iqbal Kabir Jahid
- Department of Microbiology, Jashore University of Science and Technology, Jashore-7408, Bangladesh
| | - Changsun Choi
- Department of Food and Nutrition, School of Food Science and Technology, Chung-Ang University, Anseong, 17546, South Korea
| | - Si Hong Park
- Department of Food Science and Technology, Oregon State University, Corvallis 97331
| | - Sang-Do Ha
- Department of Food Science and Technology, Advanced Food Safety Research Group, Brain Korea 21 Plus, Chung-Ang University, Anseong, 17546, South Korea.
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Choi S, Lee J. Volatile and sensory profiles of different black rice (Oryza sativa L.) cultivars varying in milling degree. Food Res Int 2021; 141:110150. [PMID: 33642016 DOI: 10.1016/j.foodres.2021.110150] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 01/10/2021] [Accepted: 01/12/2021] [Indexed: 12/21/2022]
Abstract
In this study, we compared the volatile and sensory profiles of various black rice (Oryza sativa L.) cultivars varying in milling degree. In total, 51 volatiles were identified. 2-Acetyl-1-pyrroline (2-AP) was only detected in aromatic cultivars, and the amount varied depending on the cultivar. Additionally, a nonaromatic black rice cultivar (cv. Sinnongheukchal) contained high amounts of guaiacol. Descriptive analyses revealed significant differences in 13 sensory attributes between aromatic and nonaromatic black rice samples. After milling, the intensities of most volatile compound concentrations and sensory attributes decreased. However, the intensities of the "floral," "sweet aroma," and "sweet taste" sensory attributes increased, regardless of the cultivar. Partial least squares regression analysis showed that 2-AP correlated with the "popcorn" sensory attribute of aromatic black rice cultivars, whereas guaiacol was related to the "smoky" sensory attribute of cooked black rice. This information aids in the selection of black rice cultivars for various purposes in the food industry. For example, Heukhyangchal can be used as sources of food additives due to its smoky and popcorn-like aroma.
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Affiliation(s)
- Sehun Choi
- Department of Food Science and Technology, Chung-Ang University, Anseong, Republic of Korea
| | - Jihyun Lee
- Department of Food Science and Technology, Chung-Ang University, Anseong, Republic of Korea.
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27
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Di Guardo M, Farneti B, Khomenko I, Modica G, Mosca A, Distefano G, Bianco L, Troggio M, Sottile F, La Malfa S, Biasioli F, Gentile A. Genetic characterization of an almond germplasm collection and volatilome profiling of raw and roasted kernels. HORTICULTURE RESEARCH 2021; 8:27. [PMID: 33518710 PMCID: PMC7848010 DOI: 10.1038/s41438-021-00465-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 12/11/2020] [Accepted: 12/17/2020] [Indexed: 05/16/2023]
Abstract
Almond is appreciated for its nutraceutical value and for the aromatic profile of the kernels. In this work, an almond collection composed of 96 Sicilian accessions complemented with 10 widely cultivated cultivars was phenotyped for the production of volatile organic compounds using a proton-transfer time-of-flight mass spectrometer and genotyped using the Illumina Infinium®18 K Peach SNP array. The profiling of the aroma was carried out on fresh and roasted kernels enabling the detection of 150 mass peaks. Sixty eight, for the most related with sulfur compounds, furan containing compounds, and aldehydes formed by Strecker degradation, significantly increased during roasting, while the concentration of fifty-four mass peaks, for the most belonging to alcohols and terpenes, significantly decreased. Four hundred and seventy-one robust SNPs were selected and employed for population genetic studies. Structure analysis detected three subpopulations with the Sicilian accessions characterized by a different genetic stratification compared to those collected in Apulia (South Italy) and the International cultivars. The linkage-disequilibrium (LD) decay across the genome was equal to r2 = 0.083. Furthermore, a high level of collinearity (r2 = 0.96) between almond and peach was registered confirming the high synteny between the two genomes. A preliminary application of a genome-wide association analysis allowed the detection of significant marker-trait associations for 31 fresh and 33 roasted almond mass peaks respectively. An accurate genetic and phenotypic characterization of novel germplasm can represent a valuable tool for the set-up of marker-assisted selection of novel cultivars with an enhanced aromatic profile.
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Affiliation(s)
- M Di Guardo
- Department of Agriculture, Food and Environment (Di3A), University of Catania, via Valdisavoia 5, 95123, Catania, Italy
| | - B Farneti
- Research and Innovation Centre, Fondazione Edmund Mach, San Michele all' Adige, Trento, Italy
| | - I Khomenko
- Research and Innovation Centre, Fondazione Edmund Mach, San Michele all' Adige, Trento, Italy
| | - G Modica
- Department of Agriculture, Food and Environment (Di3A), University of Catania, via Valdisavoia 5, 95123, Catania, Italy
| | - A Mosca
- Department of Agriculture, Food and Environment (Di3A), University of Catania, via Valdisavoia 5, 95123, Catania, Italy
| | - G Distefano
- Department of Agriculture, Food and Environment (Di3A), University of Catania, via Valdisavoia 5, 95123, Catania, Italy.
| | - L Bianco
- Research and Innovation Centre, Fondazione Edmund Mach, San Michele all' Adige, Trento, Italy
| | - M Troggio
- Research and Innovation Centre, Fondazione Edmund Mach, San Michele all' Adige, Trento, Italy
| | - F Sottile
- Dipartimento di Architettura, University of Palermo, Viale delle Scienze, Ed. 14 90128, Palermo, Italy
| | - S La Malfa
- Department of Agriculture, Food and Environment (Di3A), University of Catania, via Valdisavoia 5, 95123, Catania, Italy
| | - F Biasioli
- Research and Innovation Centre, Fondazione Edmund Mach, San Michele all' Adige, Trento, Italy
| | - A Gentile
- Department of Agriculture, Food and Environment (Di3A), University of Catania, via Valdisavoia 5, 95123, Catania, Italy
- National Center for Citrus Improvement, College of Horticulture and Landscape, Hunan Agricultural University, Changsha, China
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Luo KK, Chapman DM, Lerno LA, Huang G, Mitchell AE. Influence of post-harvest moisture on roasted almond shelf life and consumer acceptance. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:139-150. [PMID: 32614076 DOI: 10.1002/jsfa.10624] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 06/19/2020] [Accepted: 07/02/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND The harvest weights of sweet almonds (Prunus dulcis) have significantly increased to meet consumer demand and now exceed processing facility capabilities. Crops are stockpiled for longer periods, increasing the probability of moisture exposure. Wet almonds can be mechanically dried prior to processing; however, it is unclear how this practice influences lipid oxidation, shelf-life, and consumer acceptance. To address this, almonds were exposed to 8% moisture and dried with low heat (ME). Almonds were roasted and stored under accelerated conditions for 12 months and markers of lipid oxidation, headspace volatiles, sensory attributes, and consumer liking were evaluated. RESULTS At 7 months of storage, light roast ME almonds had higher levels of volatiles related to lipid oxidation than non-moisture exposed almonds (NME) and were significantly higher in oxidized, cardboard and painty / solvent flavors. Although untrained consumers did not show significant preferences between the light roast ME and NME almonds, there were quality losses related to lipid oxidation that trained panelists could detect. Dark roast ME almonds demonstrated significant lipid oxidation by 5 months of storage, indicating they will have a compromised shelf life. Findings also indicate that octanal, nonanal, 2-octenal, and hexanoic acid are good indicators of consumer acceptability. CONCLUSION The results of this research illustrate that post-harvest moisture exposure with mechanical drying has a significant effect on the storage quality of roasted almonds and is most pronounced in dark roast products. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Kathleen K Luo
- Department of Food Science and Technology, University of California, Davis, Davis, CA, USA
| | | | - Larry A Lerno
- Food Safety and Measurement Facility, University of California, Davis, Davis, CA, USA
| | | | - Alyson E Mitchell
- Department of Food Science and Technology, University of California, Davis, Davis, CA, USA
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29
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Variability of Chemical Profile in Almonds ( Prunus dulcis) of Different Cultivars and Origins. Foods 2021; 10:foods10010153. [PMID: 33450909 PMCID: PMC7828311 DOI: 10.3390/foods10010153] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/08/2021] [Accepted: 01/10/2021] [Indexed: 12/14/2022] Open
Abstract
Almonds show a great variability in their chemical composition. This variability is a result of the existence of a diverse range of almond cultivars, the self-incompatibility of most almond cultivars, and the heterogeneous harvesting conditions found around the different locations where almons are grown. In the last years, the discrimination among almond cultivars has been the focal point of some research studies to avoid fraud in protected geographical indications in almond products and also for selecting the best cultivars for a specific food application or the most interesting ones from a nutritional point of view. In this work, a revision of the recent research works related to the chemical characterization and classification of almond cultivars from different geographical origins has been carried out. The content of macronutrients, tocopherols, phytosterols, polyphenols, minerals, amino acids, and volatile compounds together with DNA fingerprint have been reported as possible cultivar and origin markers. The analysis of the results showed that no individual almond compound could be considered a universal biomarker to find differences among different almond cultivars. Hence, an adequate selection of variables or the employment of metabolomics and the application of multivariate statistical techniques is necessary when classification studies are carried out to obtain valuable results. Meanwhile, DNA fingerprinting is the perfect tool for compared cultivars based on their genetic origin.
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Jiang H, Kong JJ, Chen HC, Xiang ZY, Zhang WP, Han ZD, Liao PC, Lee YI. Cypripedium subtropicum (Orchidaceae) employs aphid colony mimicry to attract hoverfly (Syrphidae) pollinators. THE NEW PHYTOLOGIST 2020; 227:1213-1221. [PMID: 32337728 DOI: 10.1111/nph.16623] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 04/09/2020] [Indexed: 06/11/2023]
Abstract
In Orchidaceae, pollination is mostly animal-mediated, and one-third of species have evolved a deceptive pollination mechanism without rewards. Cypripedium is a representative lineage of nonrewarding orchids restricted to temperate regions. Cypripedium subtropicum flowers are pollinated by hoverflies and have hairy tufts that visually resemble an aphid colony covered with honey dew. We recorded the behavior of hoverflies on the flowers, determined the breeding system of the species and the structure of hairy tufts, and investigated the roles of hairy tufts and floral volatiles in this specialized pollination by using pollination experiments, scanning electron microscopy, bioassays and chemical analyses. The white hairy tufts covering the sidelobes of the labellum provide edible rewards and serve as crucial visual lures for hoverflies. The flowers emit primarily (E)-β-farnesene and a smaller amount of β-pinene that were found to attract hoverflies. Our results suggest that C. subtropicum uses both visual mimicry of an aphid-colonized labellum with a reward and chemical mimicry of aphid alarm pheromones to attract hoverflies for pollination. This is the first described example of a rewarding mimicry system in plants, where the models are animals with their secretions and the reward is similar in nutrients to that of the model mimicked.
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Affiliation(s)
- Hong Jiang
- Yunnan Laboratory for Conservation of Rare, Endangered & Endemic Forest Plants, National Forestry and Grassland Administration, Yunnan Academy of Forestry and Grassland, Kunming, 650201, Yunnan, China
| | - Ji-Jun Kong
- Yunnan Laboratory for Conservation of Rare, Endangered & Endemic Forest Plants, National Forestry and Grassland Administration, Yunnan Academy of Forestry and Grassland, Kunming, 650201, Yunnan, China
| | - Hsin-Chun Chen
- Department of Cosmeceutics, China Medical University, Taichung, 40453, Taiwan
| | - Zhen-Yong Xiang
- Yunnan Laboratory for Conservation of Rare, Endangered & Endemic Forest Plants, National Forestry and Grassland Administration, Yunnan Academy of Forestry and Grassland, Kunming, 650201, Yunnan, China
| | - Wei-Ping Zhang
- Yunnan Laboratory for Conservation of Rare, Endangered & Endemic Forest Plants, National Forestry and Grassland Administration, Yunnan Academy of Forestry and Grassland, Kunming, 650201, Yunnan, China
| | - Zhou-Dong Han
- Yunnan Laboratory for Conservation of Rare, Endangered & Endemic Forest Plants, National Forestry and Grassland Administration, Yunnan Academy of Forestry and Grassland, Kunming, 650201, Yunnan, China
| | - Pei-Chun Liao
- Department of Life Science, National Taiwan Normal University, 116, Taipei, Taiwan
| | - Yung-I Lee
- Department of Biology, National Museum of Natural Science, 40453, Taichung, Taiwan
- Department of Life Sciences, National Chung Hsing University, 40227, Taichung, Taiwan
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31
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Zhang H, Huang D, Pu D, Zhang Y, Chen H, Sun B, Ren F. Multivariate relationships among sensory attributes and volatile components in commercial dry porcini mushrooms (Boletus edulis). Food Res Int 2020; 133:109112. [DOI: 10.1016/j.foodres.2020.109112] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 01/18/2020] [Accepted: 02/18/2020] [Indexed: 10/25/2022]
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32
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Fu M, Shen X, Peng H, Zhou Q, Yun J, Sun Y, Ho CT, Cai H, Hou R. Identification of rancidity markers in roasted sunflower seeds produced from raw materials stored for different periods of time. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2019.108721] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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33
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Oliveira I, Malheiro R, Meyer AS, Pereira JA, Gonçalves B. Application of chemometric tools for the comparison of volatile profile from raw and roasted regional and foreign almond cultivars ( Prunus dulcis). JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2019; 56:3764-3776. [PMID: 31413403 PMCID: PMC6675829 DOI: 10.1007/s13197-019-03847-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 01/18/2019] [Accepted: 05/22/2019] [Indexed: 11/27/2022]
Abstract
In almonds, volatile compounds are major contributors to flavour, being scarce the current knowledge about their volatile profile. Hence, this work intended to characterize the volatile profile, using headspace solid-phase microextraction and gas chromatography-mass spectrometry, in raw and roasted almond cultivars (regional cvs. Amendoão, Bonita, Casanova, Molar and Pegarinhos and foreign cvs. Ferragnès and Glorieta). Overall, 35 compounds were identified, with major chemical classes being alcohols and aldehydes. In raw fruits, benzaldehyde and 3-methyl-1-butanol were key compounds, with roasting changing volatile profiles, increasing release of compounds, with predominance of hexanal and benzaldehyde. Cultivars Glorieta and Molar didn't show significant increase in aldehyde content after roasting, which may indicate higher resistance to heat-caused oxidation. The use of linear discriminant analysis and principal components analysis permitted the recognition of patterns in the volatile profiles, that can be useful for cultivars identification. This work allowed the characterization and monitoring changes caused by roasting of volatile components of less studied almond cultivars, identifying some that can withstand roasting procedures with reduced formation of compounds associated with off-flavours.
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Affiliation(s)
- Ivo Oliveira
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences - CITAB, Universidade de Trás-os-Montes e Alto Douro, UTAD, Quinta de Prados, 5000-801 Vila Real, Portugal
| | - Ricardo Malheiro
- Centro de Investigação de Montanha (CIMO), ESA, Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Anne S. Meyer
- DTU Bioengineering, Department of Biotechnology and Biomedicine, Technical University of Denmark, DTU Building 221, 2800 Kgs, Lyngby, Denmark
| | - José Alberto Pereira
- Centro de Investigação de Montanha (CIMO), ESA, Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Berta Gonçalves
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences - CITAB, Universidade de Trás-os-Montes e Alto Douro, UTAD, Quinta de Prados, 5000-801 Vila Real, Portugal
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Lipan L, Moriana A, Lluch DBL, Cano-Lamadrid M, Sendra E, Hernández F, Vázquez-Araújo L, Corell M, Carbonell-Barrachina ÁA. Nutrition Quality Parameters of Almonds as Affected by Deficit Irrigation Strategies. Molecules 2019; 24:E2646. [PMID: 31330924 PMCID: PMC6680691 DOI: 10.3390/molecules24142646] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 07/19/2019] [Indexed: 01/08/2023] Open
Abstract
The influence of full irrigation, double-regulated (RDI) and sustained deficit irrigation (SDI) treatments on almond quality was assessed by analyzing different parameters: sugars, organic acids, antioxidant activity, total phenolic content (TPC), and volatile compounds. Almond quality studies for plants submitted to water stress are scarce, and it is essential to understand the biochemical responses of plants to water stress in maintaining fruit yield and quality. Citric acid, sucrose, antioxidant activity, and TPC were not affected by the application of studied deficit irrigation strategies (DI). An increase in malic acid and a decrease in glucose was observed for stressed samples (T3 and T4), while a higher number of total volatiles compounds was found for moderate RDI (T2). Using deficit irrigation strategies, the almond yield and quality was not changed, and in fact, some parameters, such as glucose and key volatile compounds, slightly increased under moderate RDI. This finding might encourage farmers to implement these strategies and contribute to sustainable agriculture.
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Affiliation(s)
- Leontina Lipan
- Universidad Miguel Hernández de Elche, Escuela Politécnica Superior de Orihuela, Department of Agro-Food Technology, Research Group "Food Quality and Safety", Carretera de Beniel, km 3.2, 03312-Orihuela, Alicante, Spain
| | - Alfonso Moriana
- Departamento de Ciencias Agroforestales, ETSIA, Universidad de Sevilla, Carretera de Utrera, km 1, 41013, Sevilla, Spain
| | - David B López Lluch
- Universidad Miguel Hernández de Elche, Escuela Politécnica Superior de Orihuela, Department of Agro-Environmental Economics, Carretera de Beniel, km 3.2, 03312-Orihuela, Alicante, Spain
| | - Marina Cano-Lamadrid
- Universidad Miguel Hernández de Elche, Escuela Politécnica Superior de Orihuela, Department of Agro-Food Technology, Research Group "Food Quality and Safety", Carretera de Beniel, km 3.2, 03312-Orihuela, Alicante, Spain
| | - Esther Sendra
- Universidad Miguel Hernández de Elche, Escuela Politécnica Superior de Orihuela, Department of Agro-Food Technology, Research Group "Food Quality and Safety", Carretera de Beniel, km 3.2, 03312-Orihuela, Alicante, Spain
| | - Francisca Hernández
- Universidad Miguel Hernández de Elche, Escuela Politécnica Superior de Orihuela, Department of Plant Science and Microbiology, Research Group "Plant Production and Technology", Carretera de Beniel, km 3.2, 03312-Orihuela, Alicante, Spain
| | - Laura Vázquez-Araújo
- BCCInnovation, Technological Center in Gastronomy, Juan Avelino Barriola 101, 20009-Donostia-San Sebastián, Gipuzkoa, Spain
- Basque Culinary Center, Mondragon Unibersitatea, Juan Avelino Barriola 101, 20009-Donostia-San Sebastián, Gipuzkoa, Spain
| | - Mireia Corell
- Departamento de Ciencias Agroforestales, ETSIA, Universidad de Sevilla, Carretera de Utrera, km 1, 41013, Sevilla, Spain
- Unidad Asociada al CSIC de Uso sostenible del suelo y el agua en la agricultura (US-IRNAS), Crta de Utrera km 1, 41013 Sevilla, Spain
| | - Ángel A Carbonell-Barrachina
- Universidad Miguel Hernández de Elche, Escuela Politécnica Superior de Orihuela, Department of Agro-Food Technology, Research Group "Food Quality and Safety", Carretera de Beniel, km 3.2, 03312-Orihuela, Alicante, Spain..
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35
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Franklin LM, Mitchell AE. Review of the Sensory and Chemical Characteristics of Almond ( Prunus dulcis) Flavor. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:2743-2753. [PMID: 30762362 DOI: 10.1021/acs.jafc.8b06606] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Understanding almond flavor, in terms of both sensory aspects and chemistry, is essential for processors to maintain almond quality and to correctly identify acceptable or unacceptable product. This overview of the sensory and chemical characteristics of almond flavor discusses raw and heat-processed almonds, the volatile compounds generated upon heating, the aroma qualities associated with various odorants, and the use of descriptive sensory analysis for sweet almonds. Flavor development and off-flavors in almonds due to rancidity is also explored. The review examines the existing methods used to assess common nonvolatile as well as volatile indicators of lipid oxidation in almonds and the correlation of these indicators with consumer acceptance. Recent research on the relationship among volatile profile, rancidity indicators, and consumer acceptance is presented.
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Affiliation(s)
- Lillian M Franklin
- Department of Food Science and Technology , University of California, Davis , One Shields Avenue , Davis , California 95616 , United States
| | - Alyson E Mitchell
- Department of Food Science and Technology , University of California, Davis , One Shields Avenue , Davis , California 95616 , United States
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36
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Choi S, Seo HS, Lee KR, Lee S, Lee J, Lee J. Effect of milling and long-term storage on volatiles of black rice (Oryza sativa L.) determined by headspace solid-phase microextraction with gas chromatography–mass spectrometry. Food Chem 2019; 276:572-582. [DOI: 10.1016/j.foodchem.2018.10.052] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Revised: 10/08/2018] [Accepted: 10/09/2018] [Indexed: 11/15/2022]
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37
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Shan Y, Yu J, Liu QS, Shi L, Liu Y, Li J. Lipid oxidation stability of ultra-high-temperature short-time sterilization sporoderm-broken pine pollen (UHT-PP) and 60 Co-irradiation sterilization sporoderm-broken pine pollen ( 60 Co-PP). JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:675-684. [PMID: 29961985 DOI: 10.1002/jsfa.9232] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 06/26/2018] [Accepted: 06/29/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Pine pollen, a kind of Chinese traditional medicine, is rich in unsaturated fatty acids. During its processing, it is often needed to break the sporoderm in order to increase the availability of some ingredients, which can cause lipid oxidation and the development of rancidity during storage. RESULTS The primal peroxide value (PV) of ultra-high-temperature short-time sterilization sporoderm-broken pine pollen (UHT-PP) was much higher (over 15 times) than raw pine pollen (R-PP) and 60 Co-irradiation sterilization sporoderm-broken pine pollen (60 Co-PP). The PV of UHT-PP first increased and then decreased shortly after; however, PV of R-PP and 60 Co-PP remained almost unchanged during storage. The volatiles associated with rancidity in UHT-PP were found to be significantly higher than 60 Co-PP, especially hexanal (nearly 30 times) and hexanoic acid (about 2 times), and a multi-organoleptic sensor analyzer (electronic nose system) was able to differentiate these three kinds of samples when the output was subjected to discriminant function analysis. During storage (30 days), hexanal first increased and then decreased (at about 5 days), and hexanoic acid continuously increased for UHT-PP; however, no significant change was noted for R-PP or 60 Co-PP. UHT-PP has a greater surface area than 60 Co-PP, although same sporoderm-broken processes were applied. Antioxidants (flavone, carotenoid and tocopherols, sterol compounds) in 60 Co-PP were significantly (P ≤ 0.05, by Duncan's multiple range test) higher than that in UHT-PP, although not significantly different for total phenolics. CONCLUSIONS Rancidity occurs more readily in UHT-PP than in R-PP and 60 Co-PP during storage, probably because significant lipid oxidation and antioxidant degradation occurred during the UHT sterilization sporoderm-broken processing of pine pollen. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Yue Shan
- Department of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, People's Republic of China
| | - Jiahao Yu
- Department of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, People's Republic of China
| | - Qi Song Liu
- National Engineering Laboratory for Cereal Fermentation Technology, Wuxi, China
| | - Lihua Shi
- National Engineering Laboratory for Cereal Fermentation Technology, Wuxi, China
| | - Yuanfa Liu
- Department of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, People's Republic of China
- National Engineering Laboratory for Cereal Fermentation Technology, Wuxi, China
| | - Jinwei Li
- Department of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, People's Republic of China
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Characterization of volatile aroma compounds after in-vial cooking of foxtail millet porridge with gas chromatography-mass spectrometry. J Cereal Sci 2018. [DOI: 10.1016/j.jcs.2018.05.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Franklin LM, King ES, Chapman D, Byrnes N, Huang G, Mitchell AE. Flavor and Acceptance of Roasted California Almonds During Accelerated Storage. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:1222-1232. [PMID: 29313329 DOI: 10.1021/acs.jafc.7b05295] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Monitoring oxidative flavor changes in almonds is possible only if the chemical and sensory profile during roasting and storage is first established. Herein, almonds roasted at two different temperatures (115 and 152 °C) were stored at 39 °C for 0 to 12 months and were analyzed by headspace solid-phase microextraction gas chromatography-mass spectrometry, descriptive analysis, and consumer hedonic analysis. Volatile profiles, descriptive sensory profiles, and consumer hedonic scores were analyzed for predictive relationships. Descriptive attributes involving Roasted and Nutty as well as consumer liking were highest in fresh almonds, while flavors typically associated with oxidative rancidity such as Cardboard, Painty/Solvent, Soapy, and Total Oxidized increased during storage. Compounds most important for predicting rancidity-related attributes were lipid oxidation products, including pentanal, hexanal, heptanal, and octanal. Consumer liking was best predicted by similar compounds to those predicting Clean Nutty flavor, including Maillard reaction products such as 2- and 3-methylbutanal, 2-methylpyrazine, and 2,5-dimethylpyrazine.
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Affiliation(s)
- Lillian M Franklin
- Department of Food Science and Technology, University of California, Davis , One Shields Avenue, Davis, California 95616, United States
| | - Ellena S King
- Covance Food Solutions , 365 North Canyons Parkway, Suite 201, Livermore, California 94551, United States
| | - Dawn Chapman
- Covance Food Solutions , 365 North Canyons Parkway, Suite 201, Livermore, California 94551, United States
| | - Nadia Byrnes
- International Flavors and Fragrances , 800 Rose Lane, Union Beach, New Jersey 07735, United States
| | - Guangwei Huang
- Almond Board of California , Suite 1500, 1150 Ninth Street, Modesto, California 95354, United States
| | - Alyson E Mitchell
- Department of Food Science and Technology, University of California, Davis , One Shields Avenue, Davis, California 95616, United States
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Franklin LM, Chapman DM, King ES, Mau M, Huang G, Mitchell AE. Chemical and Sensory Characterization of Oxidative Changes in Roasted Almonds Undergoing Accelerated Shelf Life. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:2549-2563. [PMID: 28285524 DOI: 10.1021/acs.jafc.6b05357] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
In almonds, there is no standard method for detecting oxidative changes and little data correlating consumer perception with chemical markers of rancidity. To address this, we measured peroxide values (PV), free fatty acid values (FFAs), conjugated dienes, tocopherols, headspace volatiles, and consumer hedonic response in light roasted (LR) and dark roasted (DR) almonds stored under conditions that promote rancidity development over 12 months. Results demonstrate that, although rancidity develops at different rates in LR and DR almonds, consumer liking was not significantly different between LR and DR almonds. Average hedonic ratings of almonds were found to fall below a designated acceptable score of 5 ("neither like nor dislike") by 6 months of storage. This did not correspond with recommended industry rejection standard of PV < 5 mequiv peroxide/kg oil and FFA < 1.5% oleic. FFAs remain well below <1.5% oleic during storage, indicating that FFAs are not a good marker of rancidity in roasted almonds stored in low humidity environments. Regression of consumer liking to concentration of rancidity indicators revealed that selected headspace volatiles, including heptanal, octanal, nonanal, 2-octenal, 2-heptanone, 2-pentylfuran, hexanal, and pentanal, had a better correlation with liking than did nonvolatile indicators.
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Affiliation(s)
- Lillian M Franklin
- Department of Food Science and Technology, University of California, Davis , One Shields Avenue, Davis, California 95616, United States
| | - Dawn M Chapman
- Covance Food Solutions , 365 North Canyons Parkway, Suite 101, Livermore, California 94551, United States
| | - Ellena S King
- Covance Food Solutions , 365 North Canyons Parkway, Suite 101, Livermore, California 94551, United States
| | - Mallory Mau
- Department of Food Science and Technology, University of California, Davis , One Shields Avenue, Davis, California 95616, United States
| | - Guangwei Huang
- Almond Board of California , Suite 1500, 1150 Ninth Street, Modesto, California 95354, United States
| | - Alyson E Mitchell
- Department of Food Science and Technology, University of California, Davis , One Shields Avenue, Davis, California 95616, United States
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41
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Zamora R, Aguilar I, Granvogl M, Hidalgo FJ. Toxicologically Relevant Aldehydes Produced during the Frying Process Are Trapped by Food Phenolics. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:5583-5589. [PMID: 27322490 DOI: 10.1021/acs.jafc.6b02165] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The lipid-derived carbonyl trapping ability of phenolic compounds under common food processing conditions was studied by determining the presence of carbonyl-phenol adducts in both onions fried in the laboratory and commercially crispy fried onions. Four carbonyl-phenol adducts produced between quercetin and acrolein, crotonaldehyde, or (E)-2-pentenal were prepared and characterized by (1)H and (13)C nuclear magnetic resonance (NMR) spectroscopy and high performance liquid chromatography coupled to high resolution mass spectrometry (HPLC-HRMS). The synthesized compounds were 2-(3,4-dihydroxyphenyl)-3,5,8-trihydroxy-9,10-dihydro-4H,8H-pyrano[2,3-f]chromen-4-one (4), 2-(3,4-dihydroxyphenyl)-3,5,8-trihydroxy-10-methyl-9,10-dihydro-4H,8H-pyrano[2,3-f]chromen-4-one (5), 2-(3,4-dihydroxyphenyl)-3,5-dihydroxy-8-methyl-4H,8H-pyrano[2,3-f]chromen-4-one (9), and 2-(3,4-dihydroxyphenyl)-8-ethyl-3,5-dihydroxy-4H,8H-pyrano[2,3-f]chromen-4-one (10). When onions were fried in fresh rapeseed oil spiked with acrolein, crotonaldehyde, and (E)-2-pentenal (2.7 μmol/g of oil), adduct 10 was the major compound produced, and trace amounts of adducts 4 and 5, but not of adduct 9, were also detected. In contrast, compound 4 was the major adduct present in commercially crispy fried onions. Compound 10 was also present to a lower extent, and trace amounts of compound 5, but not of compound 9, were also detected. These data suggested that lipid-derived carbonyl-phenol adducts are formed in food products under standard cooking conditions. They also pointed to a possible protective role of food polyphenols, which might contribute to the removal of toxicologically relevant aldehydes produced during deep-frying, assuming that the formed products are stable during food consumption in the human organism.
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Affiliation(s)
- Rosario Zamora
- Instituto de la Grasa, Consejo Superior de Investigaciones Científicas, Carretera de Utrera km 1, Campus Universitario - Edificio 46, 41013-Seville, Spain
| | - Isabel Aguilar
- Instituto de la Grasa, Consejo Superior de Investigaciones Científicas, Carretera de Utrera km 1, Campus Universitario - Edificio 46, 41013-Seville, Spain
| | - Michael Granvogl
- Lehrstuhl für Lebensmittelchemie, Techniche Universität München , Lise-Meitner-Straβe 34, D-85354 Freising, Germany
| | - Francisco J Hidalgo
- Instituto de la Grasa, Consejo Superior de Investigaciones Científicas, Carretera de Utrera km 1, Campus Universitario - Edificio 46, 41013-Seville, Spain
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Larrauri M, Demaría MG, Ryan LC, Asensio CM, Grosso NR, Nepote V. Chemical and Sensory Quality Preservation in Coated Almonds with the Addition of Antioxidants. J Food Sci 2015; 81:S208-15. [PMID: 26595771 DOI: 10.1111/1750-3841.13164] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Accepted: 10/25/2015] [Indexed: 11/29/2022]
Abstract
Almonds provide many benefits such as preventing heart disease due to their high content of oleic fatty acid-rich oil and other important nutrients. However, they are susceptible to oxidation reactions causing rancidity during storage. The objective of this work was to evaluate the chemical and sensory quality preservation of almonds coated with carboxymethyl cellulose and with the addition of natural and synthetic antioxidants during storage. Four samples were prepared: almonds without coating (C), almonds coated with carboxymethyl cellulose (CMC), almonds coated with CMC supplemented with peanut skins extract (E), and almonds coated with CMC and supplemented with butylhydroxytoluene (BHT). Proximate composition and fatty acid profile were determined on raw almonds. Almond samples (C, CMC, E and BHT) were stored at 40 °C for 126 d. Lipid oxidation indicators: peroxide value (PV), conjugated dienes (CD), volatile compounds (hexanal and nonanal), and sensory attributes were determined for the stored samples. Samples showed small but significant increases in PV, CD, hexanal and nonanal contents, and intensity ratings of negative sensory attributes (oxidized and cardboard). C had the highest tendency to deterioration during storage. At the end of storage (126 d), C had the highest PV (3.90 meqO2 /kg), and BHT had the lowest PV (2.00 meqO2 /kg). CMC and E samples had similar intermediate PV values (2.69 and 2.57 meqO2 /kg, respectively). CMC coating and the addition of natural (peanut skin extract) and synthetic (BHT) antioxidants provide protection to the roasted almond product.
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Affiliation(s)
- Mariana Larrauri
- Química Biológica, Facultad de Ciencias Agropecuarias, Univ. Nacional de Córdoba, Argentina and Inst. Multidisciplinario de Biología Vegetal (IMBIV-CONICET), Av. Vélez Sarsfield 1611, CU, (5016), Córdoba, Argentina
| | - María Gimena Demaría
- Escuela de Nutrición, Facultad de Ciencias Médicas, Univ. Nacional de Córdoba, Argentina
| | - Liliana C Ryan
- Escuela de Nutrición, Facultad de Ciencias Médicas, Univ. Nacional de Córdoba, Argentina
| | - Claudia M Asensio
- Química Biológica, Facultad de Ciencias Agropecuarias, Univ. Nacional de Córdoba, Argentina and Inst. Multidisciplinario de Biología Vegetal (IMBIV-CONICET), Av. Vélez Sarsfield 1611, CU, (5016), Córdoba, Argentina
| | - Nelson R Grosso
- Química Biológica, Facultad de Ciencias Agropecuarias, Univ. Nacional de Córdoba, Argentina and Inst. Multidisciplinario de Biología Vegetal (IMBIV-CONICET), Av. Vélez Sarsfield 1611, CU, (5016), Córdoba, Argentina
| | - Valeria Nepote
- Inst. de Ciencia y Tecnología de Alimentos (ICTA), Facultad de Ciencias, Exactas Físicas y Naturales, Univ. Nacional de Córdoba, Argentina and Inst. Multidisciplinario de Biología Vegetal (IMBIV-CONICET). Av. Vélez Sarsfield 1611, CU, (5016), Córdoba, Argentina
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Kwak J, Faranda A, Henkin JM, Gallagher M, Preti G, McGovern PE. Volatile organic compounds released by enzymatic reactions in raw nonpareil almond kernel. Eur Food Res Technol 2015. [DOI: 10.1007/s00217-015-2463-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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