1
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Liu L, Liu T, Wang H, Zhao Y, Xu X, Zeng M. Identification and validation of core microbes for the formation of the characteristic flavor of fermented oysters (Crassostrea gigas). Food Chem 2024; 449:138970. [PMID: 38653141 DOI: 10.1016/j.foodchem.2024.138970] [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: 09/21/2023] [Revised: 01/28/2024] [Accepted: 03/05/2024] [Indexed: 04/25/2024]
Abstract
Self-fermented oyster homogenates were prepared to investigate core microbes and their correlations with flavor formation mechanisms. Five bacterial and four fungal genera were identified. Correlation analysis showed that Saccharomyces cerevisiae, Kazachstania, and L. pentosus were core species for the flavor of fermented products. Four core microbes were selected for inoculation into homogenates. Twelve key aroma compounds with odor activity values >1 were identified by gas chromatography-mass spectrometry. L. plantarum and S. cerevisiae were beneficial for producing key aroma compounds such as 1-octen-3-ol, (E,Z)-2,6-nonadienal, and heptanal. Fermentation with four microbes resulted in significant increases in contents of Asp, Glu, Lys, inosine monophosphate, and guanosine monophosphate, which provided freshness and sweetness. Fermentation with four microbes resulted in high digestibility, antioxidant abilities, and zinc contents. This study has elucidated the mechanism of flavor formation by microbial action and provides a reference for targeted flavor control in fermented oyster products.
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Affiliation(s)
- Li Liu
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong Province 266400, China
| | - Tianhong Liu
- Marine Science research Institute of Shandong Province, Qingdao, Shandong Province 266100, China
| | - Hongjiang Wang
- Foshan Haitian (Suqian) Flavoring Food Co., LTD, Suqian, Jiangsu Province 233800, China
| | - Yuanhui Zhao
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong Province 266400, China.
| | - Xinxing Xu
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong Province 266400, China.
| | - Mingyong Zeng
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong Province 266400, China.
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2
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Zhang C, Wang X, Liu Y, Wang J, Xie J. Characteristics of meat flavoring prepared using hydrolyzed plant protein mix by three different heating processes. Food Chem 2024; 446:138853. [PMID: 38422645 DOI: 10.1016/j.foodchem.2024.138853] [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: 10/09/2023] [Revised: 02/13/2024] [Accepted: 02/24/2024] [Indexed: 03/02/2024]
Abstract
Meat flavoring was prepared using mainly enzymatic hydrolysate of plant protein mix, VB1, cysteine, and glucose by three heating processes, including A (80 °C-140 min), B (two-stage, 80 °C-30 min/120 °C-30 min), and C (120 °C-40 min). The A-, B-, and C-heated samples exhibited the strongest fatty and weakest meaty, the strongest meaty and kokumi, and the strongest roasted and bitterness characteristics, respectively. PLS-DA for free amino acids with TAVs and that for SPME/GC-MS results with GC-O and OAVs, suggested three amino acids and eight flavor compounds contributed significantly in differentiating taste or aroma attributes of the three heated samples. Molecular weight distribution and degree of amino substitution suggested 1-5 kDa peptides contributed to kokumi taste. Overall, C- and A-heating exhibited the highest rates in Maillard reaction and lipid oxidation, respectively, while those of B heating were between these two heating processes and responsible for better flavor of meat flavoring.
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Affiliation(s)
- Chenping Zhang
- Key Laboratory of Geriatric Nutrition and Health (Ministry of Education), School of Light Industry Science and Engineering, Beijing Technology and Business University (BTBU), Beijing 100048, China
| | - Xuan Wang
- Key Laboratory of Geriatric Nutrition and Health (Ministry of Education), School of Light Industry Science and Engineering, Beijing Technology and Business University (BTBU), Beijing 100048, China
| | - Yang Liu
- Key Laboratory of Geriatric Nutrition and Health (Ministry of Education), School of Light Industry Science and Engineering, Beijing Technology and Business University (BTBU), Beijing 100048, China
| | - Jianan Wang
- Key Laboratory of Geriatric Nutrition and Health (Ministry of Education), School of Light Industry Science and Engineering, Beijing Technology and Business University (BTBU), Beijing 100048, China
| | - Jianchun Xie
- Key Laboratory of Geriatric Nutrition and Health (Ministry of Education), School of Light Industry Science and Engineering, Beijing Technology and Business University (BTBU), Beijing 100048, China.
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3
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Cao Y, Huang C, Guo Y, Xu Y, Gong S, Chu Q, Chen P. Unraveling the contributing factors of stale odor in Longjing tea through a sensomics approach. Food Chem 2024; 441:138301. [PMID: 38176144 DOI: 10.1016/j.foodchem.2023.138301] [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: 10/11/2023] [Revised: 12/05/2023] [Accepted: 12/26/2023] [Indexed: 01/06/2024]
Abstract
Longjing tea is renowned for its fresh aroma and high value. However, during storage, the emergence of an off-flavor known as "stale odor" can significantly impact the flavor quality and economic benefits of Longjing tea. Yet, the specific volatiles responsible for this stale odor in Longjing tea remain unknown. In this study, Longjing tea samples with varying degrees of stale odor intensity were analyzed using simultaneous distillation extraction coupled with gas chromatography-mass spectrometry (SDE-GC-MS). Through odor activity value (OAV) and fractional omission testing, hexanoic acid and trans-2-nonenal were identified as the primary contributors to the stale odor. Moreover, the concentration of hexanoic acid was found to be valuable in predicting the intensity of the stale odor in Longjing tea. The oxidative degradation of linoleic acid was proved as the generation pathway of stale odor in Longjing tea. These findings provide essential theoretical principles for Longjing tea production and preservation.
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Affiliation(s)
- Yanyan Cao
- Tea Research Institute, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, China.
| | - Chuangsheng Huang
- Tea Research Institute, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, China.
| | - Yating Guo
- Tea Research Institute, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, China.
| | - Yingxin Xu
- Tea Research Institute, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, China.
| | - Shuying Gong
- Tea Research Institute, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, China.
| | - Qiang Chu
- Tea Research Institute, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, China.
| | - Ping Chen
- Tea Research Institute, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, China.
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4
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Li K, Zhang L, Yi D, Luo Y, Zheng C, Wu Y. Insights into the Volatile Flavor Profiles of Two Types of Beef Tallow via Electronic Nose and Gas Chromatography-Ion Mobility Spectrometry Analysis. Foods 2024; 13:1489. [PMID: 38790789 PMCID: PMC11119226 DOI: 10.3390/foods13101489] [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: 04/02/2024] [Revised: 05/01/2024] [Accepted: 05/02/2024] [Indexed: 05/26/2024] Open
Abstract
In the current study, an electronic nose (E-nose) and gas chromatography-ion mobility spectrometry (GC-IMS) were employed to investigate the volatile flavor compounds (VFCs) of intense flavor beef tallow (L) and ordinary beef tallow (P). The study results indicate that an E-nose combined with an LDA and GC-IMS combined with an OPLS-DA can effectively distinguish between the two types of beef tallow. Compared with ordinary beef tallow, the E-nose sensors of intense flavor beef tallow have stronger response signals to sulfides, terpenes, and nitrogen oxides. A total of 22 compounds contribute to making the flavor of intense flavor beef tallow more typical and richer; in contrast, ethyl acetate was the main aroma-active compound found in the ordinary beef tallow. Sulfur-containing compounds and terpenoids might be the key substances that cause sensory flavor differences between the two types of beef tallow. In conclusion, the results of this study clarify the characteristics and differences of the two types of beef tallow and provide an enhanced understanding of the differences in the flavors of the two types of beef tallow.
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Affiliation(s)
- Ke Li
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China; (K.L.); (L.Z.); (D.Y.); (Y.L.); (C.Z.)
- Institute of Agriculture Products Processing Science and Technology, Sichuan Academy of Agriculture Science, Chengdu 610039, China
| | - Liangyao Zhang
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China; (K.L.); (L.Z.); (D.Y.); (Y.L.); (C.Z.)
| | - Danhui Yi
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China; (K.L.); (L.Z.); (D.Y.); (Y.L.); (C.Z.)
| | - Yunxiao Luo
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China; (K.L.); (L.Z.); (D.Y.); (Y.L.); (C.Z.)
| | - Chao Zheng
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China; (K.L.); (L.Z.); (D.Y.); (Y.L.); (C.Z.)
| | - Yinglong Wu
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China; (K.L.); (L.Z.); (D.Y.); (Y.L.); (C.Z.)
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5
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Xu J, Tu Z, Wang H, Hu Y, Wen P, Huang X, Wang S. Discrimination and characterization of different ultrafine grinding times on the flavor characteristic of fish gelatin using E-nose, HS-SPME-GC-MS and HS-GC-IMS. Food Chem 2024; 433:137299. [PMID: 37660600 DOI: 10.1016/j.foodchem.2023.137299] [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: 06/29/2023] [Revised: 08/23/2023] [Accepted: 08/24/2023] [Indexed: 09/05/2023]
Abstract
Three different methods were used to identify and analyze the flavor of fish gelatin with different ultrafine grinding time (0, 2, 4 and 8 h). The results of electronic nose showed that overall flavor of the samples changed. HS-SPME-GC-MS identified 65 volatile compounds, including 18 aldehydes, 7 ketones, 7 alkanes, 11 alcohols, 8 esters, 7 phenols, and 7 acids. HS-GC-IMS identified 46 volatile compounds, including 21 aldehydes, 5 ketones, 5 alcohols, 6 esters, 7 acids, 1 ether, and 1 amine. The particle size analysis results indicate that the size distribution decreases from 918.97-1167.16 and 1388.81-1780.40 nm to 157.63-177.37 and 285.90-344.55 nm with the increased of grinding time. The SEM analysis results indicate that the change in flavor characteristics of FG is due to the different storage and release abilities of volatile compounds in FG with different particle sizes.
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Affiliation(s)
- Jinghong Xu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Zongcai Tu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China; National R&D Center of Freshwater Fish Processing, Jiangxi Normal University, Nanchang 330022, China; Engineering Research Center of Freshwater Fish High-value Utilization of Jiangxi Province, Jiangxi Normal University, Nanchang 330022, China
| | - Hui Wang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China.
| | - Yueming Hu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Pingwei Wen
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Xiaoliang Huang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Shu Wang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
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6
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Luo X, Huang K, Niu Y, Zhang X, An Y, Liu R, Xiong S, Hu Y. Effects of freezing methods on physicochemical properties, protein/fat oxidation and odor characteristics of surimi gels with different cross-linking degrees. Food Chem 2024; 432:137268. [PMID: 37657334 DOI: 10.1016/j.foodchem.2023.137268] [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: 06/15/2023] [Revised: 08/21/2023] [Accepted: 08/22/2023] [Indexed: 09/03/2023]
Abstract
This work investigated the effects of liquid nitrogen immersion freezing (LNF), -35 °C air freezing (AF-35℃) and -18 °C air freezing (AF-18℃) on the physical and chemical characteristics and flavor quality of surimi gels with different cross-linking degrees. Compared to AF-35 °C and AF-18 °C, LNF was shown to considerably delay the texture deterioration and water migration of frozen gels, as well as the accumulation of thiobarbituric acid reactive substance values and carbonyl contents. Additionally, an appropriate increase of cross-linking degree (45.83 to 62.99%) was found able to improve gel properties and inhibit quality deterioration during freezing. Moreover, LNF-treated gels were closer to fresh gels in the amount of volatile compounds, in contrast to most significant negative aroma changes in AF-18℃-treated gels. Furthermore, 29, 29 and 31 key differential volatile compounds were screened for gels with a cross-linking degree of 29.66, 45.83 and 62.99%, respectively, mainly including aldehydes, alcohols and esters.
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Affiliation(s)
- Xiaoying Luo
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China; School of Chemical Sciences, The University of Auckland, Auckland 1142, New Zealand
| | - Kang Huang
- School of Chemical Sciences, The University of Auckland, Auckland 1142, New Zealand
| | - Yongxin Niu
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Xu Zhang
- Guangdong Medical Devices Quality Surveillance and Test Institute, Guangzhou, Guangdong 510663, China
| | - Yueqi An
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Ru Liu
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Shanbai Xiong
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Yang Hu
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
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7
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Qiao M, Xiong H, Cai X, Jiang Y, Zhao X, Miao B. Evaluation of Loquat Jam Quality at Different Cooking Times Based on Physicochemical Parameters, GC-IMS and Intelligent Senses. Foods 2024; 13:340. [PMID: 38275707 PMCID: PMC10815106 DOI: 10.3390/foods13020340] [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: 12/12/2023] [Revised: 01/09/2024] [Accepted: 01/18/2024] [Indexed: 01/27/2024] Open
Abstract
The study compared and analyzed the quality of loquat jam with different cooking times through physicochemical parameters, headspace-gas chromatography-ion migration spectroscopy (HS-GC-IMS) and intelligent senses. The results showed that with the prolongation of the cooking time, the color of loquat jam slowly deepened, the energy significantly increased, the adhesiveness, gumminess, hardness and chewiness enhanced, the free amino acid content increased from 22.40 to 65.18 mg/g. The organic acid content increased from 1.64 to 9.82 mg/g. Forty-seven volatile flavor compounds were identified in five types of loquat jam using HS-GC-IMS, among which the relative content of aldehydes was sharply higher than that of other chemical substances, playing an important role in the flavor formation of loquat jam. LJ0, LJ1 and LJ2 had higher aldehyde content, followed by LJ3 and LJ4 had the lowest aldehyde content. The orthogonal partial least squares-discriminant analysis (OPLS-DA) screened 15 marker compounds that could distinguish five types of loquat jam. The E-nose results showed a significant difference in olfactory sense between loquat jam cooked for 100 and 120 min. The E-tongue results corroborated the results of free amino acids (FAAs) and organic acids, indicating that the gustatory sense of loquat jam changed significantly when the cooking time reached 120 min. The results provided a basis for further research on the relationship between the cooking process and quality characteristics of loquat jam.
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Affiliation(s)
- Mingfeng Qiao
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu National Agricultural Science & Technology Center, Chengdu 610213, China; (M.Q.); (Y.J.); (X.Z.)
- Culinary Science Key Laboratory of Sichuan Province, Sichuan Tourism University, Chengdu 610100, China; (H.X.); (X.C.)
| | - Huan Xiong
- Culinary Science Key Laboratory of Sichuan Province, Sichuan Tourism University, Chengdu 610100, China; (H.X.); (X.C.)
- College of Life Science, Dalian Minzu University, Dalian 116600, China
| | - Xuemei Cai
- Culinary Science Key Laboratory of Sichuan Province, Sichuan Tourism University, Chengdu 610100, China; (H.X.); (X.C.)
| | - Yuqin Jiang
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu National Agricultural Science & Technology Center, Chengdu 610213, China; (M.Q.); (Y.J.); (X.Z.)
| | - Xinxin Zhao
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu National Agricultural Science & Technology Center, Chengdu 610213, China; (M.Q.); (Y.J.); (X.Z.)
| | - Baohe Miao
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu National Agricultural Science & Technology Center, Chengdu 610213, China; (M.Q.); (Y.J.); (X.Z.)
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8
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He G, Yang SB, Wang YZ. An integrated chemical characterization based on FT-NIR, and GC-MS for the comparative metabolite profiling of 3 species of the genus Amomum. Anal Chim Acta 2023; 1280:341869. [PMID: 37858569 DOI: 10.1016/j.aca.2023.341869] [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: 06/26/2023] [Revised: 08/31/2023] [Accepted: 10/02/2023] [Indexed: 10/21/2023]
Abstract
BACKGROUND The fruits and seeds of genus Amomum are well-known as medicinal plants and edible spices, and are used in countries such as China, India and Vietnam to treat malaria, gastrointestinal disorders and indigestion. The morphological differences between different species are relatively small, and technical characterization and identification techniques are needed. RESULTS Fourier transform near infrared spectroscopy (FT-NIR) and gas chromatography-mass spectrometry (GC-MS), combined with principal component analysis and two-dimensional correlation analysis were used to characterize the chemical differences of Amomum tsao-ko, Amomum koenigii, and Amomum paratsaoko. The targets and pathways for the treatment of diabetes mellitus in three species were predicted using network pharmacology and screened for the corresponding pharmacodynamic components as potential quality markers. The results of "component-target-pathway" network showed that (+)-Nerolidol, 2-Nonanol, α-Terpineol, α-Pinene, 2-Nonanone had high degree values and may be the main active components. Partial least squares-discriminant analysis (PLS-DA) was further used to select for differential metabolites and was identified as a potential quality marker, 11 in total. PLS-DA and residual network (ResNet) classification models were developed for the identification of 3 species of the genus Amomum, ResNet model is more suitable for the identification study of large volume samples. SIGNIFICANCE This study characterizes the differences between the three species in a visual way and also provides a reliable technique for their identification, while demonstrating the ability of FT-NIR spectroscopy for fast, easy and accurate species identification. The results of this study lay the foundation for quality evaluation studies of genus Amomum and provide new ideas for the development of new drugs for the treatment of diabetes mellitus.
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Affiliation(s)
- Gang He
- Medicinal Plants Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, 650200, China; College of Food Science and Technology, Yunnan Agricultural University, Kunming, 650201, China
| | - Shao-Bing Yang
- Medicinal Plants Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, 650200, China.
| | - Yuan-Zhong Wang
- Medicinal Plants Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, 650200, China.
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9
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Jin W, Cai W, Zhao S, Gao R, Jiang P. Uncovering the differences in flavor volatiles of different colored foxtail millets based on gas chromatography-ion migration spectrometry and chemometrics. Curr Res Food Sci 2023; 7:100585. [PMID: 37744553 PMCID: PMC10514424 DOI: 10.1016/j.crfs.2023.100585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 08/28/2023] [Accepted: 09/03/2023] [Indexed: 09/26/2023] Open
Abstract
The differences of volatile organic compounds in commercially available foxtail millets with different colors (black, green, white and yellow) were assayed through gas chromatography-ion migration spectrometry (GC-IMS) to explore their volatile flavor characteristics. Fifty-five volatile components were found in various colored foxtail millets, including 25 kinds of aldehydes (accounting for 39.19-48.69%), 10 ketones (25.36-32.37%), 15 alcohols (20.19-24.11%), 2 ethers (2.29-2.45%), 2 furans (1.49-2.95%) and 1 ester (0.27-0.39%). Aldehydes, alcohols and ketones were the chief volatiles in different colored foxtail millet, followed by furans, esters and ethers. These identified volatile flavor components in various colored foxtail millets obtained by GC-IMS could be well distinguished by principal components and cluster analysis. Meanwhile, a stable prediction model was fitted via partial least squares-discriminant analysis (PLS-DA), in which 17 kinds of differentially volatile components were screened out based on variable importance in projection (VIP>1). These findings might provide certain information for understanding the flavor traits of colored foxtail millets in future.
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Affiliation(s)
- Wengang Jin
- Qinba State Key Laboratory of Biological Resource and Ecological Environment (Incubation), School of Bioscience and Technology, Shaanxi University of Technology, Hanzhong, Shaanxi, 723001, China
- Collaborative Innovation Center of Bio-Resource in Qinba Mountain Area, Shaanxi Province Key Laboratory of Bio-resources, Hanzhong, Shaanxi, 723001, China
| | - Wenqiang Cai
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, Liaoning, 116034, China
| | - Shibo Zhao
- Qinba State Key Laboratory of Biological Resource and Ecological Environment (Incubation), School of Bioscience and Technology, Shaanxi University of Technology, Hanzhong, Shaanxi, 723001, China
- Collaborative Innovation Center of Bio-Resource in Qinba Mountain Area, Shaanxi Province Key Laboratory of Bio-resources, Hanzhong, Shaanxi, 723001, China
| | - Ruichang Gao
- Qinba State Key Laboratory of Biological Resource and Ecological Environment (Incubation), School of Bioscience and Technology, Shaanxi University of Technology, Hanzhong, Shaanxi, 723001, China
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Pengfei Jiang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, Liaoning, 116034, China
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10
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Zhang W, Chen Y, Yun Y, Li C, Fang Y, Zhang W. Discrimination and characterization of different coconut water (CW) by their phenolic composition and volatile organic compounds (VOCs) using LC-MS/MS, HS-SPME-GC-MS, and HS-GC-IMS. J Food Sci 2023; 88:3758-3772. [PMID: 37530630 DOI: 10.1111/1750-3841.16711] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 06/24/2023] [Accepted: 07/05/2023] [Indexed: 08/03/2023]
Abstract
Three varieties of coconut (Cocos nucifera L.) water (CW) at two maturity stages were investigated for physicochemical and nutritional properties. The profile of phenolic compounds and volatile organic compounds (VOCs) was determined by liquid chromatography-tandem mass spectrometry (LC-MS/MS), headspace solid-phase microextraction-gas chromatography-mass spectrometry (HS-SPME-GC-MS), and headspace-gas chromatography-ion mobility spectrometry (HS-GC-IMS). Most of the properties of CW changed significantly with maturity rather than variety. The five most relevant phenolic compounds in CW were chlorogenic acid, 4-hydroxy-3,5-dimethoxycinnamic acid, L-epicatechin, and procyanidins B2 and B1. Variety played a more important role in phenolic composition than maturity, and Wenye No. 4 can be distinguished from other two varieties. Alcohols and esters were the main VOCs in CW identified by HS-GC-IMS and HS-SPME-GC-MS, respectively. Five and four compounds (VIP scores > 1) were characteristic compounds for CW by HS-GC-IMS and HS-SPME-GC-MS, respectively. The VOCs of Wenye Nos. 2 and 3 were more similar than those of Wenye No. 4. These findings could provide useful information for the selection of raw materials of CW used for different industrial purposes.
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Affiliation(s)
- Wende Zhang
- School of Food Science and Engineering, Hainan University, Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Hainan Institute for Food Control, Haikou, P. R. China
| | - Yang Chen
- School of Food Science and Engineering, Hainan University, Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Hainan Institute for Food Control, Haikou, P. R. China
| | - Yonghuan Yun
- School of Food Science and Engineering, Hainan University, Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Hainan Institute for Food Control, Haikou, P. R. China
| | - Congfa Li
- School of Food Science and Engineering, Hainan University, Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Hainan Institute for Food Control, Haikou, P. R. China
- Key Laboratory of Tropical Agricultural Products Processing Technology of Haikou City, Haikou, P. R. China
| | - Yajing Fang
- School of Food Science and Engineering, Hainan University, Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Hainan Institute for Food Control, Haikou, P. R. China
| | - Weimin Zhang
- School of Food Science and Engineering, Hainan University, Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Hainan Institute for Food Control, Haikou, P. R. China
- Key Laboratory of Tropical Agricultural Products Processing Technology of Haikou City, Haikou, P. R. China
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11
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Jin W, Zhao S, Sun H, Pei J, Gao R, Jiang P. Characterization and discrimination of flavor volatiles of different colored wheat grains after cooking based on GC-IMS and chemometrics. Curr Res Food Sci 2023; 7:100583. [PMID: 37691695 PMCID: PMC10484957 DOI: 10.1016/j.crfs.2023.100583] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/13/2023] [Accepted: 08/29/2023] [Indexed: 09/12/2023] Open
Abstract
Changes in flavor volatiles of three colored wheat grains (black, green, and yellow) after cooking were detected via gas chromatography-ion migration spectrometry (GC-IMS) to explore corresponding volatile flavor traits. A total of 52 volatile chemicals were spotted among these cooked wheat grains, including 30 aldehydes (accounting for 73.86-83.78%), 11 ketones (9.53-16.98%), 3 alcohols (0.88-1.21%), 4 furans (4.82-7.44%), 2 esters (0.28-0.42%), and 2 pyrazines (0.18-0.32%). Aldehydes, ketones, and furans were the main volatile compounds in three different cooked wheat. For black-colored wheat, the relative contents of benzene acetaldehyde, benzaldehyde, 2-methyl butanal, and 3-methyl butanal were much higher (p < 0.05). For green-colored wheat, the relative contents of nonanal, 2-pentyl furan, (E)-hept-2-enal, 2-butanone, and acetone were significantly higher (p < 0.05). For yellow-colored wheat, the relative amounts of heptanal, hexanal, and pentanal were much higher (p < 0.05). The overall volatile substances of the three cooked wheat grains might be classified by GC-IMS data coupled with principal component analysis and heatmap clustering analysis. A reliable forecast set was established through orthogonal partial least squares-discriminant analysis (OPLS-DA), and 22 differential volatile compounds were screened out based on variable importance in projection (VIP) being higher than 1.0, as flavor markers for distinguishing the three cooked wheat grains. These results suggest that GC-IMS could be used for characterizing the flavor volatiles of different colored wheat, and the findings could contribute certain information for understand the aroma traits in different colored cooked wheat and related products in the future.
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Affiliation(s)
- Wengang Jin
- Qinba State Key Laboratory of Biological Resource and Ecological Environament (Incubation), School of Bioscience and Technology, Shaanxi University of Technology , Hanzhong, Shaanxi 723001, China
- Collaborative Innovation Center of Bio-Resource in Qinba Mountain Area, Shaanxi Province Key Laboratory of Bio-resources, Hanzhong, Shaanxi 723001, China
| | - Shibo Zhao
- Qinba State Key Laboratory of Biological Resource and Ecological Environament (Incubation), School of Bioscience and Technology, Shaanxi University of Technology , Hanzhong, Shaanxi 723001, China
| | - Haiyan Sun
- Qinba State Key Laboratory of Biological Resource and Ecological Environament (Incubation), School of Bioscience and Technology, Shaanxi University of Technology , Hanzhong, Shaanxi 723001, China
- Collaborative Innovation Center of Bio-Resource in Qinba Mountain Area, Shaanxi Province Key Laboratory of Bio-resources, Hanzhong, Shaanxi 723001, China
| | - Jinjin Pei
- Qinba State Key Laboratory of Biological Resource and Ecological Environament (Incubation), School of Bioscience and Technology, Shaanxi University of Technology , Hanzhong, Shaanxi 723001, China
- Collaborative Innovation Center of Bio-Resource in Qinba Mountain Area, Shaanxi Province Key Laboratory of Bio-resources, Hanzhong, Shaanxi 723001, China
| | - Ruichang Gao
- Qinba State Key Laboratory of Biological Resource and Ecological Environament (Incubation), School of Bioscience and Technology, Shaanxi University of Technology , Hanzhong, Shaanxi 723001, China
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Pengfei Jiang
- School of Food Science and Technology, Dalian Polytechnic University, Liaoning, 116034, China
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12
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Yang X, Pei Z, Du W, Xie J. Characterization of Volatile Flavor Compounds in Dry-Rendered Beef Fat by Different Solvent-Assisted Flavor Evaporation (SAFE) Combined with GC-MS, GC-O, and OAV. Foods 2023; 12:3162. [PMID: 37685095 PMCID: PMC10486796 DOI: 10.3390/foods12173162] [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: 07/17/2023] [Revised: 08/14/2023] [Accepted: 08/17/2023] [Indexed: 09/10/2023] Open
Abstract
To comprehensively understand the volatile flavor composition of dry-rendered beef fat, solvent-assisted flavor evaporation (SAFE) with four extraction solvents (dichloromethane, pentane, ethyl ether, and methanol) combined with gas chromatography-mass spectrometry (GC-MS) and gas chromatography-olfactormetry (GC-O) were performed. GC-MS analysis found 96 different volatile compounds in total using the four extraction solvents. According to the GC-MS results and the heat map and principal component analysis (PCA), most of the volatile compounds resulted from dichloromethane and pentane extraction, followed by ethyl ether. Methanol extraction found a few volatile compounds of higher polarity, which was supplementary to the analysis results. Moreover, GC-O analysis found 73 odor-active compounds in total using the four extraction solvents. The GC-O results found that pentane and dichloromethane extraction had a significantly larger number of odor-active compounds than ethyl ether and methanol extraction. This indicated that pentane and dichloromethane were more effective solvents for the extraction of odor-active compounds than the other two solvents. Finally, a total of 15 compounds of odor-active values (OAVs) ≥ 1 were determined to be the key aroma compounds in the dry-rendered beef fat, including 2-methyl-3-furanthiol, 3-methylthiopropanal, (E,E)-2,4-nonadienal, 12-methyltridecanal, and 1-octen-3-one.
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Affiliation(s)
| | | | | | - Jianchun Xie
- Key Laboratory of Geriatric Nutrition and Health (Ministry of Education), Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University (BTBU), Beijing 100048, China; (X.Y.); (Z.P.); (W.D.)
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13
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Wang Z, Ahmad W, Zhu A, Geng W, Kang W, Ouyang Q, Chen Q. Identification of volatile compounds and metabolic pathway during ultrasound-assisted kombucha fermentation by HS-SPME-GC/MS combined with metabolomic analysis. ULTRASONICS SONOCHEMISTRY 2023; 94:106339. [PMID: 36842214 PMCID: PMC9984899 DOI: 10.1016/j.ultsonch.2023.106339] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 01/29/2023] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
The current work combines headspace solid phase microextraction-gas chromatography-mass spectrometry (HS-SPME-GC/MS) with multivariate analysis fusion metabonomics for examining metabolite profile changes. The correlation with metabolic pathways during the fermentation of kombucha tea were comprehensively explored. For optimizing the fermentation process, ultrasound-assisted factors were explored. A total of 132 metabolites released by fermented kombucha were detected by HS-SPME-GC/MS. We employed the principal component analysis (PCA) and partial least squares-discriminant analysis (PLS-DA) to present the relationship between aroma components and fermentation time, of which the first two principal components respectively accounted for 60.3% and 6.5% of the total variance. Multivariate statistical analysis showed that during the fermentation of kombucha tea, there were significant differences in the phenotypes of metabolites in the samples, and 25 characteristic metabolites were selected as biomarkers. Leaf alcohol was first proposed as the characteristic volatile in the fermentation process of kombucha. Furthermore, we addressed the generation pathways of characteristic volatiles, their formation mechanisms, and the transformational correlation among them. Our findings provide a roadmap for future kombucha fermentation processing to enhance kombucha flavor and aroma.
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Affiliation(s)
- Zhen Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Waqas Ahmad
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Afang Zhu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Wenhui Geng
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Wencui Kang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Qin Ouyang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China.
| | - Quansheng Chen
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China; College of Food and Biological Engineering, Jimei University, Xiamen 361021, PR China.
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14
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Evaluation of Dynamic Changes and Regularity of Volatile Flavor Compounds for Different Green Plum ( Prunus mume Sieb. et Zucc) Varieties during the Ripening Process by HS-GC-IMS with PLS-DA. Foods 2023; 12:foods12030551. [PMID: 36766079 PMCID: PMC9913901 DOI: 10.3390/foods12030551] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/29/2022] [Accepted: 01/18/2023] [Indexed: 01/29/2023] Open
Abstract
Headspace gas chromatography-ion mobility spectrometry and partial-least-squares discriminant analysis (PLS-DA) were adopted to analyze the rule of change in flavor substances for different varieties of green plums at different levels of maturity (S1-immature, S2-commercially mature, and S3-fully mature). The results showed that 68 kinds of volatile flavor substances were identified in all green plum samples. The types and contents of such volatile substances experienced a V-shaped trend with an increasing degree of green plum maturity. During the S1 and S2 stages, aldehydes, ketones, and a small amount of alcohols were the main volatile flavor substances in the green plum samples. During the S3 stage, esters and alcohols were the most important volatile flavor components in the green plum pulp samples, followed by terpenes and ketones. YS had the most types and highest contents of volatile flavor substances in three stages, followed by GC and DZ. By using the PLS-DA method, this study revealed the differences in flavor of the different varieties of green plums at different maturity stages, and it identified eight common characteristic volatile flavor substances, such as ethyl acetate, 3-methylbutan-1-ol, and 2-propanone, produced by the different green plum samples during the ripening process, as well as the characteristic flavor substances of green plums at each maturity stage (S1-S3).
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15
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Evaluation of dynamic changes and formation regularity in volatile flavor compounds in Citrus reticulata ‘chachi’ peel at different collection periods using gas chromatography-ion mobility spectrometry. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.114126] [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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16
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Fu Y, Cao S, Yang L, Li Z. Flavor formation based on lipid in meat and meat products: A review. J Food Biochem 2022; 46:e14439. [PMID: 36183160 DOI: 10.1111/jfbc.14439] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/26/2022] [Accepted: 09/19/2022] [Indexed: 01/14/2023]
Abstract
Meat product is popular throughout the world due to its unique taste. Flavor is one of the most important quality characteristics of meat products and also is a key influencing factor in the overall acceptability of meat products. The flavor of meat products is formed by precursors undergoing a series of complex reactions. During meat product processing, lipids are hydrolyzed by lipase to produce flavor precursors such as free fatty acid, then further oxidized to form volatile flavor compounds. This review summarizes lipolysis, lipid oxidation, and interaction of lipid with Maillard reaction and amino acid during meat products processing and storage as well as influencing factors on lipid degradation including raw meat (source of meat, feeding pattern, and castration), processing methods (thermal processing, nonthermal processing, salting, and fermentation) and additives. Meanwhile, the volatile compounds produced by lipids in meat products including aldehydes, alcohols, ketones, and hydrocarbons are summed up. Analytical methods of volatile compounds and the application of lipidomics analysis in mechanisms of flavor formation of meat products are also reviewed. PRACTICAL APPLICATIONS: Flavor is one of the most important quality characteristics of meat products, which influences the acceptability of meat products for consumption. Lipids play an important role in the flavor formation of meat products. Understanding the relationship between flavor compounds and changes in lipid compositions during the processing and storage of meat products will be helpful to control the quality of meat products.
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Affiliation(s)
- Yinghua Fu
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi, China
| | - Shenyi Cao
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi, China
| | - Li Yang
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi, China
| | - Zhenglei Li
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi, China
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17
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Wang H, Yang P, Liu C, Song H, Pan W, Gong L. Characterization of key odor-active compounds in thermal reaction beef flavoring by SGC×GC-O-MS, AEDA, DHDA, OAV and quantitative measurements. J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2022.104805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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18
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Study on the Suitability of Tea Cultivars for Processing Oolong Tea from the Perspective of Aroma Based on Olfactory Sensory, Electronic Nose, and GC-MS Data Correlation Analysis. Foods 2022; 11:foods11182880. [PMID: 36141008 PMCID: PMC9498329 DOI: 10.3390/foods11182880] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/09/2022] [Accepted: 09/14/2022] [Indexed: 11/21/2022] Open
Abstract
The oolong tea aroma is shown to consist of cultivar aroma and technical aroma in this study based on the aroma differences between oolong tea products of cultivars of different suitability, as determined by correlation analysis of olfactory, sensory, electronic nose, and GC-MS data. Human senses were significantly affected by the aroma components, which included eight terpene metabolites (β-Ocimene, (Z)-Furan linalool oxide, linalool, (3E)-4,8-Dimethyl-1,3,7-nonatriene, (E)-Pyranoid linalool oxide, γ-Elemene, Humulene, (Z,E)-α-Farnesene), three carotenoid metabolites (β-Ionone, (Z)-Geranylacetone and 6-methyl-5-Hepten -2-one), three lipid metabolites ((Z)-3-Hexenyl (Z)-3-hexenoate, Butanoic acid hexyl ester, and (Z)-Jasmone), four amino acid metabolites (Methyl salicylate, Geranyl isovalerate, indole, and Phenylethyl alcohol), and six thermal reaction products (2-Pentylfuran, Octanal, Decanal, (E,E)-2,4-Nonadienal, (Z)-2-Decenal, and (E)-2-Undecenal). Meanwhile, several aroma compounds (such as (E)-Nerolidol and α-Farnesene), mainly comprising the “technical aroma” formed in the processing mode, were noted to be less closely related to cultivar suitability. This study sheds light on the aroma characteristics of different tea cultivars for oolong tea processing.
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Cao W, Shu N, Wen J, Yang Y, Jin Y, Lu W. Characterization of the Key Aroma Volatile Compounds in Nine Different Grape Varieties Wine by Headspace Gas Chromatography-Ion Mobility Spectrometry (HS-GC-IMS), Odor Activity Values (OAV) and Sensory Analysis. Foods 2022; 11:foods11182767. [PMID: 36140895 PMCID: PMC9497463 DOI: 10.3390/foods11182767] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 08/24/2022] [Accepted: 09/02/2022] [Indexed: 11/16/2022] Open
Abstract
During this study, the physicochemical properties, color, and volatile aroma compounds of the original wines produced from the grape varieties ‘Hassan’, ‘Zuoshaner’, ‘Beibinghong’, ‘Zuoyouhong’, ‘Beta’, ‘Shuanghong’, ‘Zijingganlu’, ‘Cabernet Sauvignon’, and ‘Syrah’ were determined and sensory evaluation was performed. Results indicated that ‘Hassan’ contained the most solids, ‘Zuoshaner’ produced the most total acid, residual sugar, total anthocyanin, and total phenol, and ‘Shuanghong’ produced the most tannin. Calculation of the chroma and hue of the wines according to the CIEL*a*b* parameters revealed that the ‘Cabernet Sauvignon’ wines were the brightest of the nine varieties and that the ‘Zuoshaner’ wines had the greatest red hue and yellow hue and the greatest saturation’. A total of 52 volatile compounds were identified and quantified in nine wine samples by HS-GC-IMS analysis, with the most significant number of species detected being 20 esters, followed by 16 alcohols, 8 aldehydes, four ketones, one terpene, and one furan, with the highest total volatile compound content being ‘Beta’. A total of 14 volatile components with OAV (odor activity value) >1 were calculated using the odor activity value (OAV) of the threshold of the aromatic compound, and the OPLS-DA analysis was performed by orthogonal partial least squares discriminant analysis (OPLS-DA) using the OAV values of the compounds with OAV values >1 as the Y variable. The VIP (Variable Importance in Projection) values of six compounds, ethyl isobutyrate, ethyl hexanoate-D, 2-methylpropanal, ethyl octanoate, ethyl butanoate-D, and Isoamyl acetate-D, were calculated to be higher than one between groups, indicating that these six compounds may influence aroma differences. It is essential to recognize that the results of this study have implications for understanding the quality differences between different varieties of wines and for developing wines that have the characteristics of those varieties.
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Wu J, Pang L, Zhang X, Lu X, Yin L, Lu G, Cheng J. Early Discrimination and Prediction of C. fimbriata-Infected Sweetpotatoes during the Asymptomatic Period Using Electronic Nose. Foods 2022; 11:foods11131919. [PMID: 35804741 PMCID: PMC9265781 DOI: 10.3390/foods11131919] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/12/2022] [Accepted: 06/23/2022] [Indexed: 02/04/2023] Open
Abstract
Sweetpotato is prone to disease caused by C. fimbriata without obvious lesions on the surface in the early period of infection. Therefore, it is necessary to explore the possibility of developing an efficient early disease detection method for sweetpotatoes that can be used before symptoms are observed. In this study, sweetpotatoes were inoculated with C. fimbriata and stored for different lengths of time. The total colony count was detected every 8 h; HS-SPME/GC–MS and E-nose were used simultaneously to detect volatile compounds. The results indicated that the growth of C. fimbriata entered the exponential phase at 48 h, resulting in significant differences in concentrations of volatile compounds in infected sweetpotatoes at different times, especially toxic ipomeamarone in ketones. The contents of volatile compounds were related to the responses of the sensors. E-nose was combined with multiple chemometrics methods to discriminate and predict infected sweetpotatoes at 0 h, 48 h, 64 h, and 72 h. Among the methods used, linear discriminant analysis (LDA) had the best discriminant effect, with sensitivity, specificity, precision, and accuracy scores of 100%. E-nose combined with K-nearest neighbours (KNN) achieved the best predictions for ipomeamarone contents and total colony counts. This study illustrates that E-nose is a feasible and promising technology for the early detection of C. fimbriata infection in sweetpotatoes during the asymptomatic period.
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Li H, Wu Q, Liu Q, Jin L, Chen B, Li C, Xiao J, Shen Y. Volatile Flavor Compounds of Pugionium cornutum (L.) Gaertn. Before and After Different Dehydration Treatments. Front Nutr 2022; 9:884086. [PMID: 35586736 PMCID: PMC9108931 DOI: 10.3389/fnut.2022.884086] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 04/01/2022] [Indexed: 12/02/2022] Open
Abstract
Pugionium cornutum (L.) Gaertn (also Pugionium) is a special Mongolian vegetable, belonging to the Cruciferous family, growing in arid and semi-arid areas of northern China, with a unique flavor and potential health benefits. This article aims to describe the profile of volatile flavor compounds in fresh and different dehydrated samples, establish the fingerprint, and identify the characteristic compounds. The fresh Pugionium sample and 3 kinds of dehydrated samples were analyzed. Headspace/gas chromatography-ion migration spectrometry (HS/GC-IMS) and solid-phase microextraction/gas chromatography-mass spectrometry (SPME/GC-MS) were used for identification and relative quantification. HS/GC-IMS identified 78 compounds, whereas SPME/GC-MS identified 53 compounds. Principal component analysis (PCA), clustering analysis, and partial least squares discriminant analysis (PLS-DA) were used as appropriate to investigate variations in volatile compounds among Pugionium samples and identify distinctive compounds. The first two principal components described 76.5% and 69.5% of the variance of the data from HS/GC-IMS and SPME/GC-MS, respectively. By clustering analysis, 4 kinds of Pugionium samples could be classified into four independent groups. The similarity between fresh Pugionium and natural dehydration Pugionium was higher than the other two dehydrated samples, indicating that natural dehydration can better preserve the flavor of Pugionium. Most aldehydes and alcohols increased following different dehydration procedures, whereas esters decreased, and the dehydrated Pugionium samples have more harmonious and less pungent aroma than the fresh Pugionium. PLS-DA model analysis revealed that the marker compounds (VIP scores > 1) discriminating the flavor of the four samples for HS/GC-IMS and SPME/GC-MS were 24 and 15 compounds, respectively, such as 2-phenylethyl isothiocyanate, 1-butene-4-isothiocyanate and other isothiocyanates, 2-propanone, nonanal, gamma-butyrolactone, 2,3-butanediol, 3-methyl-2-butenenitrile, and pentanal. Analysis of volatile compounds might be useful for monitoring the quality of Pugionium and guiding the cooking methods and processing technologies. More study is required to discover if the various volatile flavor compounds have biological or physiological impacts on nutrition.
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Affiliation(s)
- Haoyu Li
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi'an, China
- Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, China
| | - Qian Wu
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi'an, China
| | - Qiannan Liu
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi'an, China
| | - Lihua Jin
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi'an, China
| | - Bang Chen
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi'an, China
| | - Cong Li
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi'an, China
- *Correspondence: Cong Li
| | - Jianbo Xiao
- Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo-Ourense, Ourense, Spain
| | - Yehua Shen
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi'an, China
- Yehua Shen
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22
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Sohail A, Al-Dalali S, Wang J, Xie J, Shakoor A, Asimi S, Shah H, Patil P. Aroma compounds identified in cooked meat: A review. Food Res Int 2022; 157:111385. [DOI: 10.1016/j.foodres.2022.111385] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 04/27/2022] [Accepted: 05/16/2022] [Indexed: 01/10/2023]
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Multiple Technologies Combined to Analyze the Changes of Odor and Taste in Daokou Braised Chicken during Processing. Foods 2022; 11:foods11070963. [PMID: 35407050 PMCID: PMC8998006 DOI: 10.3390/foods11070963] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/14/2022] [Accepted: 03/22/2022] [Indexed: 12/25/2022] Open
Abstract
This study analyzed the changes of odor and taste in Daokou braised chicken during processing by GC-MS, GC-IMS, e-nose and e-tongue. The 75 and 55 volatile compounds identified in Daokou braised chicken by GC-MS and GC-IMS, respectively, included hydrocarbons, aldehydes, alcohols, terpenes, ketones, heterocyclics, esters, acids and phenols; among them, aldehydes, alcohols and ketones were the most abundant. The number and proportion of volatile compounds in Daokou braised chicken changed significantly (p < 0.05) in the process. The proportion of volatile compounds with animal fatty odor, such as aldehydes and alcohols, decreased, while that of esters, ketones and terpenes from spices with fruity fragrance increased, especially in the braising stage. An e-nose showed that the odor intensities of sulfur-containing and nitrogen oxide compounds were higher (p < 0.05) after the braising stage, but weakened after 2 h braising. An e-tongue showed that saltiness and richness increased significantly (p < 0.05) after braising. The results of these four techniques showed that braising promoted the release of flavor compounds, and was beneficial to salt penetration and umami release. However, long braising could lead to weakened flavor intensity and the introduction of bitterness and astringency. This study also found that GC-IMS and e-nose were more sensitive to trace compounds such as sulfur-containing and nitrogen oxide compounds, esters, acids and phenolics in Daokou braised chicken than GC-MS. The use of multiple technologies could provide more comprehensive flavor profiles for Daokou braised chicken during processing. This study provides insights into the control of flavor of Daokou braised chicken, and may be of practical relevance for the poultry industry.
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