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Feng P, Zhou X, Yu W. Study of starch molecular structure-property relations provides new insight into slowly digested rice development. Food Res Int 2024; 194:114887. [PMID: 39232521 DOI: 10.1016/j.foodres.2024.114887] [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: 05/17/2024] [Revised: 08/07/2024] [Accepted: 08/08/2024] [Indexed: 09/06/2024]
Abstract
White rice consumption has been regarded as a potential risk factor for non-communicable diseases including obesity and type 2 diabetes. Thus, increasing attention has been paid to develop slowly digested rices with acceptable palatability. As the most abundant component of rice kernels, the fine molecular structure of starch controls not only the texture & aroma, but also the digestion properties of cooked rice. A large number of studies have been conducted to see what molecular structural features control the digestibility and palatability of cooked rice, which further could be connected to starch biosynthesis to enable rices with targeted functionalities to be chosen in non-empirical ways. Nonetheless, little progress has been made because of improper experimental designs. For example, the effects of starch fine molecular structure on cooked rice digestibility and palatability has been rarely studied within one study, resulting to various digestion results. Even for the same sample, it is hard to obtain consistent conclusions and sometimes, the results/coclusions are even controversy. In this review paper, starch fine molecular structural effects on the texture, aroma and starch digestion properties of cooked white rice were summarized followed by a detailed discussion of the relations between the fine molecular structures of amylopectin and amylose to deduce a more general conclusion of starch molecular structure-cooked rice property relations. It is expected that this review paper could provide useful information in terms of how to develop slowly digested rices with acceptable palatability.
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Affiliation(s)
- Puxu Feng
- Department of Food Science & Engineering, Jinan University, Huangpu West Avenue 601, Guangzhou City 510632, China
| | - Xianglong Zhou
- Department of Food Science & Engineering, Jinan University, Huangpu West Avenue 601, Guangzhou City 510632, China
| | - Wenwen Yu
- Department of Food Science & Engineering, Jinan University, Huangpu West Avenue 601, Guangzhou City 510632, China.
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2
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Zheng Z, Liu K, Zhou Y, Xu K, Luo Y, Ding J, Bittencourt C, Debliquy M, Zhang C. Decorated-Induced Oxygen Vacancy Engineering for Ultra-Low Concentration Nonanal Sensing: A Case Study of La-Decorated Bi 2O 2CO 3. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2408096. [PMID: 39340830 DOI: 10.1002/advs.202408096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2024] [Revised: 09/09/2024] [Indexed: 09/30/2024]
Abstract
La-decorated Bi2O2CO3 (BCO-La) microspheres are synthesized using a facile wet chemical strategy for sensing low-concentration nonanal (C9H18O) at room temperature. These BCO-La gas sensors are applied to evaluate agricultural product quality, specifically for cooked rice. The sensitivity of the BCO-6La sensor significantly surpassed that of the pure BCO sensor, achieving a response value of 174.6 when detecting 30 ppm nonanal gas. Notably, the BCO-6La sensor demonstrated a faster response time (36 s) when exposed to 18 ppm of nonanal. Additionally, the selectivity toward nonanal gas detection is higher (approximately 4-24 times) compared to interfering gases (1-octanol, geranyl acetone, linalool, hexanal, 2-pentyfuran, and 1-octen-3-ol) during cooked rice quality detection. The gas sensing mechanism and the factors contributing to the enhanced sensing performance of the BCO-La microspheres are demonstrated through in situ FT-IR spectra and DFT analysis while the realistic detection scenario is carried out. In a broader context, the reported sensors here represent a novel platform for the detection and monitoring of gases released by agricultural products during storage.
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Affiliation(s)
- Zichen Zheng
- College of Mechanical Engineering, Yangzhou University, Yangzhou, 225127, P. R. China
- Research Institute for Materials Science and Engineering, Chimie des Interactions Plasma-Surface, University of Mons, 20 Place du Parc, Mons, 7000, Belgium
| | - Kewei Liu
- College of Mechanical Engineering, Yangzhou University, Yangzhou, 225127, P. R. China
- Service de Science des Matériaux, Faculté Polytechnique, University of Mons, Mons, 7000, Belgium
| | - Yiwen Zhou
- College of Mechanical Engineering, Yangzhou University, Yangzhou, 225127, P. R. China
| | - Kaichun Xu
- College of Mechanical Engineering, Yangzhou University, Yangzhou, 225127, P. R. China
| | - Yifan Luo
- College of Mechanical Engineering, Yangzhou University, Yangzhou, 225127, P. R. China
| | - Jiabao Ding
- College of Mechanical Engineering, Yangzhou University, Yangzhou, 225127, P. R. China
| | - Carla Bittencourt
- Research Institute for Materials Science and Engineering, Chimie des Interactions Plasma-Surface, University of Mons, 20 Place du Parc, Mons, 7000, Belgium
| | - Marc Debliquy
- Service de Science des Matériaux, Faculté Polytechnique, University of Mons, Mons, 7000, Belgium
| | - Chao Zhang
- College of Mechanical Engineering, Yangzhou University, Yangzhou, 225127, P. R. China
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Zuo Z, Zhang M, Li T, Zhang X, Wang L. Quality control of cooked rice: Exploring physicochemical changes of the intrinsic component in production. Food Chem 2024; 463:141295. [PMID: 39340909 DOI: 10.1016/j.foodchem.2024.141295] [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: 05/29/2024] [Revised: 09/10/2024] [Accepted: 09/12/2024] [Indexed: 09/30/2024]
Abstract
Sensory deterioration exists in marketed cooked rice. The migration and interaction of intrinsic components occur under multiple conditions in each industrial production process and cause relevant physicochemical changes in cooked rice. This review aims to establish a scientific knowledge system of intrinsic component transition and migration in cooked rice kernel during processing to solve qualitative deficiencies in cooked rice products. The main influencing factors of intrinsic component structural change in cooked rice and the quality control points that should be considered are summarized. Further studies are needed to establish proper evaluation standards for cooked rice products to meet the growing consumer demands.
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Affiliation(s)
- Zhongyu Zuo
- School of Food Science and Technology, Jiangnan University, Lihu Avenue 1800, Wuxi 214122, China; National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Lihu Avenue 1800, Wuxi 214122, China
| | - Ming Zhang
- School of Food Science and Technology, Jiangnan University, Lihu Avenue 1800, Wuxi 214122, China; National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Lihu Avenue 1800, Wuxi 214122, China
| | - Ting Li
- School of Food Science and Technology, Jiangnan University, Lihu Avenue 1800, Wuxi 214122, China; National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Lihu Avenue 1800, Wuxi 214122, China
| | - Xinxia Zhang
- School of Food Science and Technology, Jiangnan University, Lihu Avenue 1800, Wuxi 214122, China; National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Lihu Avenue 1800, Wuxi 214122, China.
| | - Li Wang
- School of Food Science and Technology, Jiangnan University, Lihu Avenue 1800, Wuxi 214122, China; National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Lihu Avenue 1800, Wuxi 214122, China; State Key Laboratory of Food Science and Resources, Jiangnan University, Lihu Avenue 1800, Wuxi 214122, China; Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, Lihu Avenue 1800, Wuxi 214122, China.
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4
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Li S, Li H, Lu L, Shao G, Guo Z, He Y, Wang Y, Yang X, Chen M, Hu X. Analysis of rice characteristic volatiles and their influence on rice aroma. Curr Res Food Sci 2024; 9:100794. [PMID: 39021608 PMCID: PMC466974 DOI: 10.1016/j.crfs.2024.100794] [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: 02/22/2024] [Revised: 06/14/2024] [Accepted: 06/16/2024] [Indexed: 07/20/2024] Open
Abstract
Rice aroma, one of the most important qualities of rice, was the comprehensive result of volatiles in rice and human sense. In this study, the main volatile compounds in rice were analyzed by using gas chromatography-mass spectrometry and gas chromatography-olfactometry, and their correlations with sensory score were investigated. A total of eighty-five volatiles were found in rice samples. By combining odor activity value and correlation analysis, nine volatiles were considered as potential characteristic volatiles in rice aroma, namely hexanal, 2-pentylfuran, octanal, 2-acetyl-1-pyrroline (2-AP), 1-octen-3-ol, trans-2-octenal, decanal, trans-2-nonenal and trans, trans-2,4-decadienal. It was found that the volatiles negatively correlated with sensory scores were positively correlated with hexanal. It indicated that hexanal might be a representative of the negative volatiles of rice aroma. The effects of the nine potential characteristic volatiles on rice aroma were investigated by using sensory analysis. The results showed that the odor intensity and preference level of 2-AP, hexanal, and 1-octen-3-ol were significantly affected by the content. Furthermore, the aroma of cooked rice was significantly different after adding 2-AP, hexanal or trans, trans-2,4-decadienal. Rice aroma was increased by adding 2-AP and deteriorated by adding hexanal or trans, trans-2,4-decadienal, indicating that 2-AP contributed positively to rice aroma while hexanal and trans, trans-2,4-decadienal contributed negatively to rice aroma. Hexanal, 2-AP, and trans, trans-2,4-decadienal were suggested to be the key characteristic volatiles for future aroma evaluation.
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Affiliation(s)
- Shuimei Li
- Rice Product Quality Supervision and Inspection Center, Ministry of Agriculture and Rural Affairs, China National Rice Research Institute, Hangzhou 310006, Zhejiang, China
| | - Hongyan Li
- Guizhou Lianda Testing Technology Co., Ltd. Guiyang 550025, Guizhou, China
| | - Lin Lu
- Rice Product Quality Supervision and Inspection Center, Ministry of Agriculture and Rural Affairs, China National Rice Research Institute, Hangzhou 310006, Zhejiang, China
| | - Gaoneng Shao
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, Zhejiang, China
| | - Zhenling Guo
- Rice Product Quality Supervision and Inspection Center, Ministry of Agriculture and Rural Affairs, China National Rice Research Institute, Hangzhou 310006, Zhejiang, China
| | - Yuntao He
- Rice Product Quality Supervision and Inspection Center, Ministry of Agriculture and Rural Affairs, China National Rice Research Institute, Hangzhou 310006, Zhejiang, China
| | - Yong Wang
- Zhejiang SUPOR Electrical Appliances Manufacturing Co., Ltd. Hangzhou 310051, Zhejiang, China
| | - Xiaohui Yang
- Zhejiang SUPOR Electrical Appliances Manufacturing Co., Ltd. Hangzhou 310051, Zhejiang, China
| | - Mingxue Chen
- Rice Product Quality Supervision and Inspection Center, Ministry of Agriculture and Rural Affairs, China National Rice Research Institute, Hangzhou 310006, Zhejiang, China
| | - Xianqiao Hu
- Rice Product Quality Supervision and Inspection Center, Ministry of Agriculture and Rural Affairs, China National Rice Research Institute, Hangzhou 310006, Zhejiang, China
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Wimonmuang K, Lee YS. Absolute contents of aroma-affecting volatiles in cooked rice determined by one-step rice cooking and volatile extraction coupled with standard-addition calibration using HS-SPME/GC-MS. Food Chem 2024; 440:138271. [PMID: 38150906 DOI: 10.1016/j.foodchem.2023.138271] [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: 12/12/2023] [Accepted: 12/22/2023] [Indexed: 12/29/2023]
Abstract
To quantify volatiles in cooked rice, analysis methods for one-step rice cooking and volatile extraction in a single headspace vial, combined with standard addition calibration using solid-phase microextraction and GC-MS were developed and applied to 41 rice varieties with various fragrances and palatability. The newly developed methods significantly improved the qualitative and quantitative recovery of volatiles compared with conventional methods. Among 29 aroma-affecting volatiles, the highest average contents (ng/g) were observed for nonanal (39.30), octanal (13.29), and 1-octen-3-ol (13.18); the total volatile contents of aldehyde, base, and alcohol groups were 4156, 2481, and 1739 ng/g, respectively. Fifteen rice varieties contained 2-acetyl-1-pyrroline in range of 41.37-421.70 ng/g. Although there were no linear correlations among volatiles and the Toyo taste-score, multivariate PLS-DA analysis of the volatile could discriminate between low- and high-palatability rice varieties. The results indicated the accuracy and practicality of the newly developed methods for quantifying volatiles in cooked rice.
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Affiliation(s)
- Kanphassorn Wimonmuang
- Department of Medical Biotechnology, Soonchunhyang University, Asan 31538, Republic of Korea; Research and Education Group for Innovative Bio-health Industry, Soonchunhyang University, Asan 31538, Republic of Korea.
| | - Young-Sang Lee
- Department of Medical Biotechnology, Soonchunhyang University, Asan 31538, Republic of Korea.
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Qu L, Zhao Y, Li Y, Lv H. Oxidative Stability and Pasting Properties of High-Moisture Japonica Brown Rice following Different Storage Temperatures and Its Cooked Brown Rice Flavor. Foods 2024; 13:471. [PMID: 38338606 PMCID: PMC10855601 DOI: 10.3390/foods13030471] [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: 12/29/2023] [Revised: 01/20/2024] [Accepted: 01/29/2024] [Indexed: 02/12/2024] Open
Abstract
The study proposed to investigate the impacts of storage temperatures (15, 20, 25 °C) on the oxidative stability (peroxide value, carbonyl value, malondialdehyde content) and sensory attributes (pasting properties, cooked brown rice flavor) of high-moisture japonica brown rice. According to the findings, the peroxide value, the carbonyl value, and the malondialdehyde content of high-moisture japonica brown rice stored at a temperature of 15 °C exhibited consistently low levels, and the pasting properties were favorable. In addition, 22 out of 51 flavor volatiles were screened as key differential volatile flavor compounds in cooked brown rice via a combination of ANOVA and orthogonal projections to latent structures-discriminant analysis (OPLS-DA). Among them, 3-heptylacrolein had an aroma of fat and mushroom, and its contents were higher at 15 °C and 20 °C. These findings could serve as a valuable reference for storing high-moisture japonica brown rice under low temperature conditions as well as for investigating the flavor characteristics of cooked brown rice derived from this variety.
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Affiliation(s)
| | - Yan Zhao
- School of Food and Strategic Reserves, Henan University of Technology, Zhengzhou 450000, China; (L.Q.); (Y.L.); (H.L.)
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Wang J, He Y, Li X, Xie Y, Wang X, Zhu D, Liu H. Effect of soluble soybean polysaccharides on the short- and long-term retrogradation properties of instant rice. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:4850-4857. [PMID: 36917022 DOI: 10.1002/jsfa.12553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 02/10/2023] [Accepted: 03/14/2023] [Indexed: 06/08/2023]
Abstract
BACKGROUND Rice starch retrogradation is prone to occur during instant rice storage, which contributes to reduced viscosity, poor sensory characteristics, and shortened shelf life. The purpose of this study was to explore the anti-retrogradation effect of soybean soluble polysaccharides (SSPS) on instant rice and the possible interaction between SSPS and high-moisture starch products. RESULTS We studied the effects of SSPS on the retrogradation of instant rice, using hardness as an index. The optimal amount of SSPS was 0.2%. Hardness, enthalpy, relative crystallinity, and full width at half maximum values were lower in the SSPS-treated group than in the control group (no SSPS) during storage. The weight loss rate of instant rice had the following trend: SSPS-treated group (0 day) < control group (0 day) < SSPS-treated group (28 days) < control group (28 days). The lower the weight loss rate, the lower was the material loss. Scanning electron microscopy results showed that the gaps between starch granules were less obvious in the control group than in the SSPS-treated group during storage. The SSPS-treated group presented a starch network with uniform chambers. SSPS might compete with starch molecules for water absorption, thereby improving water retention and limiting starch retrogradation. CONCLUSION The results showed that adding SSPS to instant rice could effectively inhibit starch retrogradation, because the interaction of SSPS and amylopectin side chains inhibited the crosslinking of starch molecules through hydrogen bonds, which hindered the formation of ordered structures. It was helpful to understand the anti-retrogradation mechanism of SSPS during the storage of instant rice, and provided the basis for the industrial production of high-water-content starch foods. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Jian Wang
- College of Food Science and Engineering, Bohai University, Jinzhou, China
- Grain and Cereal Food Bio-efficient Transformation Engineering Research Center of Liaoning Province, Jinzhou, China
| | - Yutang He
- College of Food Science and Engineering, Bohai University, Jinzhou, China
- Grain and Cereal Food Bio-efficient Transformation Engineering Research Center of Liaoning Province, Jinzhou, China
| | - Xuyang Li
- College of Food Science and Engineering, Bohai University, Jinzhou, China
- Grain and Cereal Food Bio-efficient Transformation Engineering Research Center of Liaoning Province, Jinzhou, China
| | - Yumei Xie
- College of Food Science and Engineering, Bohai University, Jinzhou, China
| | - Xinran Wang
- College of Food Science and Engineering, Bohai University, Jinzhou, China
| | - Danshi Zhu
- College of Food Science and Engineering, Bohai University, Jinzhou, China
| | - He Liu
- College of Food Science and Engineering, Bohai University, Jinzhou, China
- Grain and Cereal Food Bio-efficient Transformation Engineering Research Center of Liaoning Province, Jinzhou, China
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Wang Y, Huang Y, Cheng N, Zhao H, Zhang Y, Liu C, He L, Ma T, Li Y, Cao W. Identification of Volatile Markers during Early Zygosaccharomyces rouxii Contamination in Mature and Immature Jujube Honey. Foods 2023; 12:2730. [PMID: 37509822 PMCID: PMC10379421 DOI: 10.3390/foods12142730] [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: 06/30/2023] [Revised: 07/09/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023] Open
Abstract
Osmotolerant yeasts are considered one of the major contaminants responsible for spoilage in honey. To address the signature volatile components of jujube honey contaminated by Zygosaccharomyces rouxii, headspace solid-phase microextraction-gas chromatography-mass spectrometry (HS-SPME-GC-MS) and chemometrics analyses were used to analyze the variation of volatile substances during early contamination of mature and immature jujube honey. Undecanal, methyl butyrate, methyl 2-nonenoate, methyl hexanoate, and 2-methyl-3-pentanone were identified as signature volatiles of jujube honey contaminated with Z. rouxii. In addition, methyl heptanoate, 2,6,10-trimethyltetradecane, and heptanal were identified as potential volatile signatures for immature jujube honey. The R2 and Q2 of OPLS-DA analyses ranged from 0.736 to 0.955, and 0.991 to 0.997, which indicates that the constructed model was stable and predictive. This study has demonstrated that HS-SPME-GC-MS could be used to distinguish Z. rouxii-contaminated jujube honey from uncontaminated honey based on variation in VOCs, and could provide theoretical support for the use of HS-SPME-GC-MS for the rapid detection of honey decomposition caused by Z. rouxii, which could improve nutritional quality and reduce economic losses.
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Affiliation(s)
- Yin Wang
- Department of Food Science, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Yuanyuan Huang
- Department of Food Science, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Ni Cheng
- Department of Food Science, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Haoan Zhao
- Department of Food Science, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Ying Zhang
- Department of Food Science, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Cailing Liu
- Department of Food Science, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Liangliang He
- Department of Food Science, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Tianchen Ma
- Department of Food Science, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Yankang Li
- Department of Food Science, College of Food Science and Technology, Northwest University, Xi'an 710069, China
| | - Wei Cao
- Department of Food Science, College of Food Science and Technology, Northwest University, Xi'an 710069, China
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Hu X, Fang C, Lu L, Hu Z, Zhang W, Chen M. Dynamic Changes in Volatiles, Soluble Sugars, and Fatty Acids in Glutinous Rice during Cooking. Foods 2023; 12:1700. [PMID: 37107495 PMCID: PMC10137653 DOI: 10.3390/foods12081700] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 04/16/2023] [Accepted: 04/17/2023] [Indexed: 04/29/2023] Open
Abstract
Cooking is an important process before rice is consumed and constitutes the key process for rice flavor formation. In this paper, dynamic changes in aroma- and sweetness-related compounds were tracked during the entire cooking process (including washing with water, presoaking, and hydrothermal cooking). The volatiles, fatty acids, and soluble sugars in raw rice, washed rice, presoaked rice, and cooked rice were compared. After being washed with water, the total volatiles decreased while aldehydes and unsaturated fatty acids increased. Meanwhile, oligosaccharides decreased and monosaccharides increased. The changes in fatty acids and soluble sugars caused by the presoaking process were similar to those in the water-washing process. However, different changes were observed for volatiles, especially aldehydes and ketone. After hydrothermal cooking, furans, aldehydes, alcohols, and esters increased while hydrocarbons and aromatics decreased. Moreover, all fatty acids increased; among these, oleic acids and linoleic acid increased most. Unlike with washing and presoaking, all soluble sugars except fructose increased after hydrothermal cooking. Principal component analysis showed that cooked rice possessed a volatile profile that was quite different from that of uncooked rice, while washed rice and presoaked rice possessed similar volatile profiles. These results indicated that hydrothermal cooking is the pivotal process for rice flavor formation.
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Affiliation(s)
| | | | | | | | | | - Mingxue Chen
- Rice Product Quality Supervision and Inspection Center, Ministry of Agriculture and Rural Affairs, China National Rice Research Institute, Hangzhou 310006, China; (X.H.)
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10
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Fan H, Liu H, Li W, Su W, Wang D, Zhang S, Liu T, Zhang Y. Effect of Tremella fuciformis polysaccharide on the stalling and flavor of tteok during storage. FOOD SCIENCE AND HUMAN WELLNESS 2023. [DOI: 10.1016/j.fshw.2022.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Zheng Z, Zhang C, Liu K, Liu Q. Volatile Organic Compounds, Evaluation Methods and Processing Properties for Cooked Rice Flavor. RICE (NEW YORK, N.Y.) 2022; 15:53. [PMID: 36309628 PMCID: PMC9617995 DOI: 10.1186/s12284-022-00602-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 10/14/2022] [Indexed: 05/13/2023]
Abstract
Rice (Oryza sativa L.), as the main refined grain in China, has attracted much attention in terms of quality. Rice is usually consumed after cooking, and it is a commonly staple food. Nowdays, people's requirements for cooked rice focus more on the taste characteristics and quality. Furthermore, aroma is one of the primary sensory reference points, which is the most intuitive way for people to judge cooked rice. By integrating and analyzing the researches of cooked rice aroma identification in recent five years, this paper expounds the extraction and identification methods (sensory evaluation method, GC-MS, SPME, MOS sensors, electronic nose, etc.) of the flavor substances in cooked rice, as the processing methods and properties of cooked rice, and the volatile organic compounds of cooked rice under different conditions are summarized as well.
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Affiliation(s)
- Zichen Zheng
- College of Mechanical Engineering, Yangzhou University, 196 West Huayang Road, Yangzhou, 225127, Jiangsu Province, People's Republic of China
| | - Chao Zhang
- College of Mechanical Engineering, Yangzhou University, 196 West Huayang Road, Yangzhou, 225127, Jiangsu Province, People's Republic of China.
| | - Kewei Liu
- College of Mechanical Engineering, Yangzhou University, 196 West Huayang Road, Yangzhou, 225127, Jiangsu Province, People's Republic of China
| | - Qiaoquan Liu
- Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu, College of Agriculture, Yangzhou University, Yangzhou, 225009, People's Republic of China
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Hu Y, Zhou X, Hu C, Yu W. HS-GC-IMS identification of volatile aromatic compounds of freshly-cooked rice packaged with different disposable lunchboxes. JOURNAL OF HAZARDOUS MATERIALS 2022; 438:129516. [PMID: 35816796 DOI: 10.1016/j.jhazmat.2022.129516] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 06/28/2022] [Accepted: 06/30/2022] [Indexed: 06/15/2023]
Abstract
The rapid development of online-to-offline food delivery service has necessitated the replacement of plastic lunchbox using biodegradable ones. In current study, a total number of fourteen panelists were firstly recruited and trained to investigate how different commercial disposable lunchboxes affect the freshly cooked rice sensory properties during heat preservation (60 °C, 60 min). The lunchboxes were made of pure polypropylene (PP), polypropylene-starch (PP-S), pure wheat-straw and sugarcane-straw (WS & SS) and Paper. The discrepancy of volatile aromatic substances was then analyzed using headspace-gas chromatography-ion mobility spectrometry (HS-GC-IMS) to study the possible mechanism beneath the variations of the influences of different lunchboxes on the aromatic properties of rice. Results showed that, compared with the textural attributes, the aroma was significantly and positively correlated with panelist's acceptability, among which, the aroma of starchy, sulfur and smoky are the most important ones. The moisture absorption plays an important role in affecting the aromatic characteristics of the packaged rice. While all lunchboxes have inhibitory effects on the production of volatile flavor substances including 2,6-Dimethylpyrazine, 2-Acetylpyrazine and γ-Octalactone, pure PP and PP-S lunchboxes generated undesirable flavor substances including 2-Ethyl-1-hexanl and Camphene, and thus reduced panelist's preferences. It was also found that the panelist liked the rice packaged by Paper lunchbox the best because of its better performance in maintaining the aroma of starchy and sulfur, the two substances that are associated with the higher concentration of ethereal and fruity volatile flavor substances. This study provides important information for manufacturers to understand how different disposable lunchboxes may impact the textural and aromatic properties of packaged foods.
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Affiliation(s)
- Yi Hu
- Department of Food Packaging Engineering, Jinan University, Qianshan Road 206, Zhuhai City 519070, China
| | - Xianglong Zhou
- Department of Food Science & Engineering, Jinan University, Huangpu West Avenue 601, Guangzou City 510632, Guangdong, China; State Key Labotraty of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Changying Hu
- Department of Food Packaging Engineering, Jinan University, Qianshan Road 206, Zhuhai City 519070, China; Department of Food Science & Engineering, Jinan University, Huangpu West Avenue 601, Guangzou City 510632, Guangdong, China.
| | - Wenwen Yu
- Department of Food Science & Engineering, Jinan University, Huangpu West Avenue 601, Guangzou City 510632, Guangdong, China.
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Zhao Q, Xi J, Xu D, Jin Y, Wu F, Tong Q, Xu X. Effect of optimal-water boiling cooking on the volatile compounds in 26 Japonica rice varieties from China. Food Res Int 2022; 155:111078. [DOI: 10.1016/j.foodres.2022.111078] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 02/22/2022] [Accepted: 02/25/2022] [Indexed: 11/26/2022]
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14
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Zhou X, Xing Y, Meng T, Li J, Chang Q, Zhao J, Jin Z. Preparation of V-type cold water-swelling starch by ethanolic extrusion. Carbohydr Polym 2021; 271:118400. [PMID: 34364547 DOI: 10.1016/j.carbpol.2021.118400] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 06/27/2021] [Accepted: 06/30/2021] [Indexed: 12/01/2022]
Abstract
Ethanolic extrusion was used to prepare V-type cold water-swelling starch (VCWSS). Effects of extrusion temperature, ratio of starch to ethanol, and ratio of starch to water on the properties of VCWSS were investigated. It was found that when the extrusion temperature was 100 °C, the ratio of starch to ethanol was 1:0.30, and the ratio of starch to water was 1:0.60, the resulting VCWSS could quickly swell into paste in cold water with the highest V-type relative crystallinity (12.90%) and cold paste viscosity (3058 cP). Then the formation mechanism of cold paste viscosity of VCWSS was evaluated. The cold paste viscosity of VCWSS was positively related to its V-type relative crystallinity. Extrusion destroyed the granular morphology of native starch, and VCWSS particles exhibited rock-like morphology that is much larger than the granules of native starch. Formation of the V-amylose-ethanol complex during extrusion was the direct cause of rapid hydration of VCWSS.
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Affiliation(s)
- Xing Zhou
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, PR China
| | - Yaru Xing
- School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, PR China
| | - Tingting Meng
- School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, PR China
| | - Jiaxin Li
- School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, PR China
| | - Qing Chang
- School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, PR China
| | - Jianwei Zhao
- School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, PR China
| | - Zhengyu Jin
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, PR China; Synergetic Innovation Center of Food Safety and Nutrition, Jiangnan University, Wuxi 214122, PR China.
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15
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Zhu W, Jiang B, Zhong F, Chen J, Zhang T. Effect of Microbial Fermentation on the Fishy-Odor Compounds in Kelp ( Laminaria japonica). Foods 2021; 10:foods10112532. [PMID: 34828815 PMCID: PMC8623561 DOI: 10.3390/foods10112532] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 10/13/2021] [Accepted: 10/20/2021] [Indexed: 11/16/2022] Open
Abstract
Kelp (Laminaria japonica) is an important marine resource with low cost and rich nutrition. However, its fishy odor has compromised consumer acceptance. In this study, the effects of fermentation with Lactobacillus plantarum FSB7, Pediococcus pentosaceus CICC 21862 and Saccharomyces cerevisiae SK1.008 on fishy notes in kelp was studied using gas chromatography-mass spectrometry (GC-MS), gas chromatography-ion mobility spectrometry (GC-IMS) and odor activity values (OAVs). Forty-four volatile organic compounds (VOCs) were identified in unfermented kelp, most of which were aldehydes, followed by alkanes, alcohols and ketones. Among them were 19 volatile compounds with OAV greater than one. Substances containing α,β-unsaturated carbonyl structure (1-Octen-3-one, (E,Z)-2,6-nonadienal, (E,E)-2,4-decadienal, etc.) are the main contributors to kelp fishy odor. The number of VOCs in kelp samples fermented by L. plantarum, P. pentosaceus and S. cerevisiae were decreased to 22, 24 and 34, respectively. GC-IMS shows that the fingerprint of the S. cerevisiae fermented sample had the most obvious changes. The disappearance of 1-octen-3-one and a 91% decrease in unsaturated aldehydes indicate that S. cerevisiae was the most effective, while L. plantarum and P. pentosaceus only reached 43-55%. The decrease in kelp fishy notes was related to the decrease in α,β-unsaturated carbonyl groups. The experimental results show that odor reduction with fermentation is feasible.
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Affiliation(s)
- Wenyang Zhu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (W.Z.); (F.Z.); (J.C.); (T.Z.)
| | - Bo Jiang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (W.Z.); (F.Z.); (J.C.); (T.Z.)
- International Joint Laboratory on Food Science and Safety, Jiangnan University, Wuxi 214122, China
- Correspondence: ; Tel.: +86-510-85915296
| | - Fang Zhong
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (W.Z.); (F.Z.); (J.C.); (T.Z.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Jingjing Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (W.Z.); (F.Z.); (J.C.); (T.Z.)
- International Joint Laboratory on Food Science and Safety, Jiangnan University, Wuxi 214122, China
| | - Tao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (W.Z.); (F.Z.); (J.C.); (T.Z.)
- International Joint Laboratory on Food Science and Safety, Jiangnan University, Wuxi 214122, China
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16
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Profiling of 2-Acetyl-1-Pyrroline and Other Volatile Compounds in Raw and Cooked Rice of Traditional and Improved Varieties of India. Foods 2021; 10:foods10081917. [PMID: 34441694 PMCID: PMC8392510 DOI: 10.3390/foods10081917] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/15/2021] [Accepted: 08/15/2021] [Indexed: 11/16/2022] Open
Abstract
Herein, optimized headspace solid phase microextraction with gas chromatography–tandem mass spectrometry (HS-SPME-GC-MS/MS) was used to estimate the 2-acetyl-1-pyrroline (2-AP) in raw and cooked rice samples of ten different traditional and improved varieties. Furthermore, HS-SPME-GC-MS-based volatile profiling was subjected to untargeted analyses to identify major odorants in raw and cooked rice samples, and to understand chemical proximities among volatile profiles. Results showed that 2-AP content was remarkably increased in cooked rice compared to raw. Among the varieties studied, Pusa-1652 (Improved Kala Namak) and Kala Namak-2 were superior in the 2-AP content than Basmati varieties. Additionally, Govind Bhog, Kala Jeera and Jeera-32 had 2-AP content equivalent to or superior to Basmati rice varieties. Altogether, 18 and 22 volatiles were identified in the raw and cooked rice samples studied, respectively. Of these, ethyl butyrate, ethyl 3-methylbutanoate, 2-undecanone, ethyl benzoate, ethyl benzeneacetate, 2-methylnaphthalene, and 1-methylnaphthalene were characteristically detected in the cooked rice. The high amount of 2-ethyl-1-hexanol was uniquely found in raw rice samples, which can be a marker compound for freshly milled rice. Along with 2-AP, butanoic acid and benzoic acid derivatives, phenylethyl alcohol, ethyl 3-hydroxybutyrate, and indole may be responsible for the overall perceived characteristic Basmati-like aroma in cooked rice.
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17
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Ma R, Jin Z, Wang F, Tian Y. Contribution of starch to the flavor of rice-based instant foods. Crit Rev Food Sci Nutr 2021; 62:8577-8588. [PMID: 34047638 DOI: 10.1080/10408398.2021.1931021] [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] [Indexed: 12/28/2022]
Abstract
Increased consumption of instant foods has led to research attention, especially rice-based instant foods. Starch, one of the most important components of rice, significantly affects food quality. However, the mechanisms by which starch contributes to rice-based instant foods flavor are poorly understood in many cases. The review aims to describe the common mechanisms by which starch contributes to food flavor, including participating in flavor formation, and affecting flavor release throughout starch multiscale structure: particle morphology, crystal structure, molecular structure. Five specific examples of rice-based instant foods were further analyzed to summarize the specific contribution of starch to flavor, including instant rice, fermented rice cake, rice noodles, fried rice, and rice dumplings. During foods processing, reducing sugars produced by heating or enzymatic hydrolysis of starch participate in Maillard reaction, caramelization and thermal degradation, which directly or indirectly affect the formation of flavor compounds. In addition, adsorption by granules, encapsulation by retrograded V-type crystal, and controlled release by starch gel all contribute to rice-based instant food flavor qualities. These mechanisms jointly contribute to flavor compounds formation and release. Proper theoretical application and improved processing methods are needed to promote the high-quality, mechanization, and automation of rice-based instant foods production.
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Affiliation(s)
- Rongrong Ma
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Zhengyu Jin
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Fan Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Yaoqi Tian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
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Fu T, Niu L, Tu J, Xiao J. The effect of different tea products on flavor, texture, antioxidant and in vitro digestion properties of fresh instant rice after commercial sterilization at 121 °C. Food Chem 2021; 360:130004. [PMID: 33975072 DOI: 10.1016/j.foodchem.2021.130004] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 04/05/2021] [Accepted: 05/02/2021] [Indexed: 11/18/2022]
Abstract
The conventional process of commercial sterilization at 121 °C resulted in undesirable flavor, injured texture and fast starch digestion of fresh instant rice (FIR) with non-dehydration. In this study, tea products, such as instant green tea (IGT), instant black tea (IBT) and matcha (Mat) were chosen as ingredients to improve the quality of FIR. The results showed thatadding tea products endowed FIR with subtle flavors and higher antioxidant capacity. And the data of XRD, FTIR and SEM indicated that the improved texture of FIR with suitable chewiness was attributed to the stability of non-crystal structure. Furthermore, compared with IBT and Mat, IGT increased the ability against digestion from 10.18% to 30.44% and delayed the retrogradation rate from 18.89% to 4.38% evidenced by T2 values after stored for 14 d. Therefore, adding tea products will be a new way to improve the quality of FIR.
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Affiliation(s)
- Tiantian Fu
- School of Food Science and Engineering, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang 330045, China
| | - Liya Niu
- School of Food Science and Engineering, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang 330045, China
| | - Jin Tu
- School of Food Science and Engineering, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang 330045, China
| | - Jianhui Xiao
- School of Food Science and Engineering, Jiangxi Agricultural University, 1101 Zhimin Road, Nanchang 330045, China; Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Jiangxi Agricultural University, Nanchang 330045, China.
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20
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Effect of cooling rate on long-term recrystallized crystal of rice starch in the presence of flavor compounds. Food Chem 2020; 345:128763. [PMID: 33302102 DOI: 10.1016/j.foodchem.2020.128763] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 11/05/2020] [Accepted: 11/27/2020] [Indexed: 11/22/2022]
Abstract
This study evaluated the effect of cooling rate on starch recrystallization in the presence of 2,3-butanedione and 2-acetyl-1-pyrroline, which could form B-type and V-type complexes with starch, respectively. Rapid cooling resulted in poor perfection and high heterogeneity of both B-type and V-type recrystallized crystal. For B-type crystal, rapid cooling changed nucleation mode from instantaneous (Avrami index n < 1) to continuous mechanism (1 ≤ n ≤ 2), and decreased recrystallization rate from 0.0502 to 0.0160 d-n, indicating the increased retention of starch on 2,3-butanedione. V-type crystal was formed at initial stages of recrystallization, and inhibited the growth of B-type crystal. The loose crystalline obtained by rapid cooling is conducive to the retention of flavor compounds for B-type complexes (especially ≤14 days) and V-type complexes (especially ≤1 day). These results could provide guidance for maintaining fragrance of instant rice during long-term storage.
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