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Yu Z, Han H, Muratkhan M, Ma H, Yue F, Lü X. Screening of lactic acid bacteria with the ability to reduce goaty flavor related fatty acids in goat milk. Int J Food Microbiol 2024; 423:110832. [PMID: 39053039 DOI: 10.1016/j.ijfoodmicro.2024.110832] [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: 03/20/2024] [Revised: 07/15/2024] [Accepted: 07/20/2024] [Indexed: 07/27/2024]
Abstract
In this study, we conducted sensory evaluation and gas chromatography-mass spectrometry analysis on fermented goat milk samples prepared by 12 strains of lactic acid bacteria (LAB) isolated from goat milk to screen for strains with the ability to reduce the goaty flavor. The bacterial counts of fermented goat milk was 7.07-9.01 log CFU/mL. The electronic nose distinguished fresh goat milk (FGM) and fermented goat milk, and the electronic tongue results showed that Leuconostoc citreum 1, 4, 20, 22, 32, and 57, Latilactobacillus curvatus 144 and 147 imparted fermented goat milk a taste different from FGM. Overall, Leuconostoc citreum 57, Leuconostoc citreum 126, Latilactobacillus curvatus 142, Latilactobacillus curvatus 143, and Latilactobacillus curvatus 147 were screened with the ability to improve the flavor of goat milk. They gave fermented goat milk a goat flavor score lower than or equal to FGM. And the fermented goat milk samples 57, 126, 142, 143, and 147 contained 25, 22, 15, 24, and 17 volatile flavor compounds, respectively, with a greater variety and content of ketones and aldehydes and lower levels of hexanoic acid, octanoic acid, and decanoic acid than FGM. However, the pH and WHC results indicated that the application of these strains as secondary cultures is necessary. Our finding provides basic research data to improve the flavor of goat milk products.
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Affiliation(s)
- Zhezhe Yu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China; Shaanxi Engineering Research Centre of Dairy Products Quality, Safety and Health, Yangling, Shaanxi, China
| | - Haoyue Han
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China; Shaanxi Engineering Research Centre of Dairy Products Quality, Safety and Health, Yangling, Shaanxi, China
| | - Marat Muratkhan
- Department of Food Technology and Processing Products, Technical Faculty, Saken Seifullin Kazakh Agrotechnical University, Zhenis Avenue, 62, Nur-Sultan 010000, Kazakhstan
| | - Hu Ma
- Ningxia Agricultural Comprehensive Development Center, Yinchuan 750001, Ningxia, China
| | - Fangfang Yue
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China; Shaanxi Engineering Research Centre of Dairy Products Quality, Safety and Health, Yangling, Shaanxi, China.
| | - Xin Lü
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China; Shaanxi Engineering Research Centre of Dairy Products Quality, Safety and Health, Yangling, Shaanxi, China.
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Wang W, Sun B, Deng J, Ai N. Addressing flavor challenges in reduced-fat dairy products: A review from the perspective of flavor compounds and their improvement strategies. Food Res Int 2024; 188:114478. [PMID: 38823867 DOI: 10.1016/j.foodres.2024.114478] [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: 03/15/2024] [Revised: 05/05/2024] [Accepted: 05/07/2024] [Indexed: 06/03/2024]
Abstract
In recent years, the demand for reduced-fat dairy products (RFDPs) has increased rapidly as the health risks associated with high-fat diets have become increasingly apparent. Unfortunately, lowering the fat content in dairy products would reduce the flavor perception of fat. Fat-derived flavor compounds are the main contributor to appealing flavor among dairy products. However, the contribution of fat-derived flavor compounds remains underappreciated among the flavor improvement factors of RFDPs. Therefore, this review aims to summarize the flavor perception mechanism of fat and the profile of fat-derived flavor compounds in dairy products. Furthermore, the characteristics and influencing factors of flavor compound release are discussed. Based on the role of these flavor compounds, this review analyzed the current and potential flavor improvement strategies for RFDPs, including physical processing, lipolysis, microbial applications, and fat replacement. Overall, promoting the synthesis of milk fat characteristic flavor compounds in RFDPs and aligning the release properties of flavor compounds from the RFDPs with those of equivalent full-fat dairy products are two core strategies to improve the flavor of reduced-fat dairy products. In the future, better modulation of the behavior of flavor compounds by various methods is promising to replicate the flavor properties of fat in RFDPs and meet consumer sensory demands.
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Affiliation(s)
- Weizhe Wang
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education (Beijing Technology & Business University) Beijing 100048, China
| | - Baoguo Sun
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education (Beijing Technology & Business University) Beijing 100048, China
| | - Jianjun Deng
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Nasi Ai
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education (Beijing Technology & Business University) Beijing 100048, China.
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Liu D, Zhao F, Li L, Zhang J, Wu S, Lü X, Zhang H, Yi Y. Enhancing the antioxidant capacity and quality attributes of fermented goat milk through the synergistic action of Limosilactobacillus fermentum WXZ 2-1 with a starter culture. J Dairy Sci 2024; 107:1928-1949. [PMID: 37939838 DOI: 10.3168/jds.2023-24135] [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: 08/29/2023] [Accepted: 10/19/2023] [Indexed: 11/10/2023]
Abstract
This study evaluated 75 strains of lactic acid bacteria (LAB) isolated from traditional dairy products in western China for their probiotic properties. Among them, Limosilactobacillus fermentum WXZ 2-1, Lactiplantibacillus plantarum TXZ 2-35, Companilactobacillus crustorum QHS 9, and Companilactobacillus crustorum QHS 10 demonstrated potential probiotic characteristics. The antioxidant capacity of these 4 strains was assessed, revealing that L. fermentum WXZ 2-1 exhibited the highest antioxidant capacity. Furthermore, when cocultured with Streptococcus salivarius ssp. thermophilus and Lactobacillus delbrueckii ssp. bulgaricus, L. fermentum WXZ 2-1 demonstrated a synergistic effect in growth medium and goat milk. To explore its effect on goat milk fermentation, different amounts of L. fermentum WXZ 2-1 were added to goat milk, and its physicochemical properties, antioxidant activity, flavor substances, and metabolomics were analyzed. The study found that the incorporation of L. fermentum WXZ 2-1 in goat milk fermentation significantly improved the texture characteristics, antioxidant capacity, and flavor of fermented goat milk. These findings highlight the potential of L. fermentum WXZ 2-1 as a valuable probiotic strain for enhancing the functionality and desirability of fermented goat milk, contributing to the development of novel functional foods with improved health benefits and enhanced quality attributes.
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Affiliation(s)
- Dengyi Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi Province, China
| | - Fan Zhao
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi Province, China
| | - Lin Li
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi Province, China
| | - Jian Zhang
- Future Food (Bai Ma) Research Institute, Lishui 211200, Jiangsu Province, China
| | - Shan Wu
- Research and Development Center, Xi'an Yinqiao Dairy (Group) Co. Ltd., Xi'an 710075, China
| | - Xin Lü
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi Province, China
| | - Hansi Zhang
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun 130012, Jilin Province, China.
| | - Yanglei Yi
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi Province, China.
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Screening of goaty flavor-inhibiting lactic acid bacteria and their effects on the flavor profiles of goat milk cakes. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2023.102504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
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Ma Y, Li J, Liu Y, Dou N, Mu S, Wei X, Bilawal A, Hou J, Jiang Z. Lactitol and β-cyclodextrin alleviate the intensity of goaty flavor. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:1588-1592. [PMID: 36318369 DOI: 10.1002/jsfa.12304] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 10/06/2022] [Accepted: 11/01/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Goat milk has balanced nutritional composition, is conducive to digestion and absorption, and does not easily lead to allergic reactions. However, the special goaty flavor in milk has seriously affected consumer acceptance. It is imperative to alleviate the goaty flavor in a safe and efficient way. RESULTS This study indicated that the supplementation of 6 g kg-1 β-cyclodextrin or 8 g kg-1 lactitol in goat milk significantly alleviated goaty flavor and improved sensory characteristics. Furthermore, the supplementation of β-cyclodextrin and lactitol had a synergistic effect in reducing the content of free fatty acids that cause goaty flavor. The content of caproic acid (C6 H12 O2 ), octanoic acid (C8 H6 O2 ), and decanoic acid (C10 H20 O2 ) decreased by 42.46%, 39.45%, and 46.41%, respectively, after a combined group was supplemented with 6 g kg-1 β-cyclodextrin and 7 g kg-1 lactitol, which was significantly lower than in groups given β-cyclodextrin or lactitol individually. CONCLUSION This study provides a novel and effective approach to alleviate goaty flavor and promote the competitiveness of goat milk products. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Yue Ma
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, People's Republic of China
| | - Jinzhe Li
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, People's Republic of China
| | - Yue Liu
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, People's Republic of China
| | - Nianxu Dou
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, People's Republic of China
| | - Sinan Mu
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, People's Republic of China
| | - Xuan Wei
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, People's Republic of China
| | - Akhunzada Bilawal
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, People's Republic of China
| | - Juncai Hou
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, People's Republic of China
- Heilongjiang Green Food Science Research Institute, Harbin, People's Republic of China
| | - Zhanmei Jiang
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, People's Republic of China
- Heilongjiang Green Food Science Research Institute, Harbin, People's Republic of China
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Chen X, Gu Z, Peng Y, Quek SY. What happens to commercial camembert cheese under packaging? Unveiling biochemical changes by untargeted and targeted metabolomic approaches. Food Chem 2022; 383:132437. [PMID: 35182863 DOI: 10.1016/j.foodchem.2022.132437] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 01/26/2022] [Accepted: 02/09/2022] [Indexed: 11/26/2022]
Abstract
Camembert cheese undergoes various biochemical changes during ripening, which lead to its unique aroma and typical flavor characteristics. This study aimed to systemically evaluate the primary biochemical events (lipolysis and proteolysis) and secondary metabolites (flavor compounds) of commercial Camembert during 56 days of ripening under packaging conditions. The changes of free fatty acid, free amino acids, soluble nitrogen, proteins/peptides distribution, odorant contribution, and volatile profiles were studied. Results showed that the lipolytic process was prevalent during the initial 14 days, while the proteolysis level continuously increased as the ripening period advanced, causing the index of ripening depth to increase from 4.8% to 13.9%. On day 28, the sample developed odorants with high modified frequency values of 94.3%. With the untargeted metabolomic approaches, two major (γ-butyrolactone and methyl heptenone) and four minor (3-methyl-1-butanol, γ-hexalactone, 2-nonanone, and dodecanoic acid) volatile markers were recognized to discriminate the ripening stages of Camembert cheese.
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Affiliation(s)
- Xiao Chen
- Food Science, School of Chemical Sciences, The University of Auckland, Auckland 1010, New Zealand
| | - Zixuan Gu
- Department of Plant Sciences, North Dakota State University, Fargo, ND 58108, USA
| | - Yinghan Peng
- Food Science, School of Chemical Sciences, The University of Auckland, Auckland 1010, New Zealand
| | - Siew Young Quek
- Food Science, School of Chemical Sciences, The University of Auckland, Auckland 1010, New Zealand; Riddet Institute, Centre of Research Excellence in Food Research, Palmerston North 4474, New Zealand.
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Expression and characterization of a novel lipase from Bacillus licheniformis NCU CS-5 for application in enhancing fatty acids flavor release for low-fat cheeses. Food Chem 2022; 368:130868. [PMID: 34438173 DOI: 10.1016/j.foodchem.2021.130868] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 08/12/2021] [Accepted: 08/12/2021] [Indexed: 01/10/2023]
Abstract
A novel lipase from Bacillus licheniformis NCU CS-5 was expressed in different Escherichia coli cells. The recombinant enzyme achieved a high activity (161.74 U/mL) with protein concentration of 0.27 mg/mL under optimal conditions at the large-scale expression of 12 h. The recombinant lipase showed optimal activity at 40 ℃ and pH 10.0, and maintained more than 80% relative activity after 96 h of incubation at pH 9.0-10.0. This typical alkaline lipase was activated under medium temperature conditions (30 and 45 ℃ for 96 h). The lipase exhibited a degree of adaptability in various organic solvents and metal ions, and showed high specificity towards triglycerides with short and medium chain fatty acids. Among different substrates, the lipase showed the strongest binding affinity towards pNPP (Km = 0.674 mM, Vmax = 950.196 μM/min). In the experiments of its application in enhancing fatty acids flavor release for low-fat cheeses, the lipase was found to hydrolyze cheeses and mainly increase the contents of butyric acid, hexanoic acid, caprylic acid and decanoic acid. The results from NMR and GC provided the possibility of enhancing fatty acids flavor released from low-fat cheeses by the lipolysis method.
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Jia W, Zhang M, Xu M, Shi L. Novel strategy to remove the odor in goat milk: Dynamic discovey magnetic field treatment to reduce the loss of phosphatidylcholine in flash vacuum from the proteomics perspective. Food Chem 2021; 375:131889. [PMID: 34953238 DOI: 10.1016/j.foodchem.2021.131889] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 11/26/2021] [Accepted: 12/15/2021] [Indexed: 12/12/2022]
Abstract
In present study, a precisely profile of PC species in goat milk was presented by quantitative lipidomics, and the matrix effect (bovine, goat and breast milk) on the lipase catalysis of PC metabolism patterns was explored via proteomics. The effects of flash vacuum and magnetic field processes to PC profile were investigated. Results showed PC(16:0_18:1) (1365.24 μg/mL) and PC(16:0_20:2) (1354.73 μg/mL) had the most abundant intensity in goat milk. Twelve novel bioactive lipases: LDHB, NSDHL, ALDH3B1, DPYD, ALDH1A1, ALDOC, ENO1, ALDOA, PRDX6, XDH, ENO3 and GAPDH were nuclear-localized in PC biosynthesis. PC in C15:0, C16:0 increased while C6:0, C8:0 decreased and the characterized protein XDH was about 91 times up regulated under 0.085 MPa, 65 °C flash vacuum and 5 mT magnetic field. The findings suggest different bioactive lipases show desirable effects on PC species metabolism, and magnetic field realize a beneficial programming impact on reducing the loss of PC.
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Affiliation(s)
- Wei Jia
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China.
| | - Min Zhang
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Mudan Xu
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Lin Shi
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
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Microbiological, physicochemical, and sensory properties of goat milk co-fermented with isolated new yeasts. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2021. [DOI: 10.1007/s11694-021-01091-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Watkins PJ, Jaborek JR, Teng F, Day L, Castada HZ, Baringer S, Wick M. Branched chain fatty acids in the flavour of sheep and goat milk and meat: A review. Small Rumin Res 2021. [DOI: 10.1016/j.smallrumres.2021.106398] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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