Article
Agronomy
Aron Park, Se-Hee Kang, Byeong-Hee Kang, Sreeparna Chowdhury, Seo-Young Shin, Won-Ho Lee, Jeong-Dong Lee, Sungwoo Lee, Yu-Mi Choi, Bo-Keun Ha
Summary: This study evaluated the trypsin inhibitor activity in 999 Korean soybean accessions and conducted molecular characterization of soybean accessions with low activity. A previously unreported mutation in the KTi-1 gene was identified and a marker was developed.
Article
Chemistry, Applied
Ana Luisa Alves, Francisco Javier Fraguas, Ana Cristina Carvalho, Jesus Valcarcel, Ricardo Isaac Perez-Martin, Rui Luis Reis, Jose Antonio Vazquez, Tiago Henriques Silva
Summary: The study compared different gelatin extraction processes for fresh and salted cod skins, finding that the extraction method affects the yield and properties of gelatin, with a trade-off between yield and gelatin properties. Gelatins from salted skins displayed lower viscoelastic properties and gel strength compared to gelatins from fresh skins.
FOOD HYDROCOLLOIDS
(2022)
Article
Agricultural Engineering
Huan Wang, Chao Lei, Yunhang Zeng, Ying Song, Qixian Zhang, Bi Shi
Summary: A novel trypsin bating method using soybean flour (SF) as a reversible inhibitor was developed, which reduced trypsin activity by 77% at a reaction time of 5 min. Bating with trypsin-SF mixture improved dispersion uniformity of hide collagen fibers, increased the softness and mechanical strength of leather, and showed potential for improving leather quality and soybean application.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Chemistry, Applied
Alina Rehder, Jens Christian Sorensen, Keld Ejdrup Markedal, Hilmer Sorensen, Susanne Sorensen, Iben Lykke Petersen
Summary: This study investigated the potential targeted use of zinc to inactivate proteinase inhibitors by reducing disulfide bonds in proteins, resulting in decreased affinity between inhibitors and proteinases. The efficiency of zinc as a reductant was demonstrated in monitoring the reduction of disulfide bonds in two specific inhibitors, Kunitz trypsin inhibitor (KTI) and Bowman-Birk inhibitor (BBI), significantly reducing their trypsin inhibitor activity. Zinc shows promise as an alternative agent to reduce proteinase inhibitor activity compared to heat treatment.
Article
Polymer Science
Yihao Zhang, Ruijia Liu, He Li, You Li, Xinqi Liu
Summary: This study investigated the interaction between 0.1 wt% soybean trypsin inhibitor (STI) and different concentrations of chitosan (CS) in aqueous solutions under different pH conditions. The formation of soluble/insoluble complexes between STI and CS was observed through hydrophobic or electrostatic interactions. The study also discussed the protective effect of the complexes on STI stability in simulated gastric juice. The results provide theoretical references for the development of supramolecular-structured carrier substances based on CS and STI.
Article
Polymer Science
Yihao Zhang, Ruijia Liu, Qixu Feng, He Li, You Li, Xinqi Liu
Summary: The aim of this study was to prepare insulin-loaded nanoparticles using soybean trypsin inhibitor (STI) and chitosan (CS) as a potential coating. The nanoparticles were prepared by complex coacervation and characterized for their particle size, polydispersity index (PDI), and encapsulation efficiency. In vitro evaluation of simulated gastrointestinal digestion showed that the prepared nanoparticles could improve the stability of insulin in the gastrointestinal tract. These findings will provide a theoretical basis for improving the stability of oral insulin in the gastrointestinal tract.
Article
Food Science & Technology
Chunmei Gu, Qiuping Yang, Shujun Li, Linlin Zhao, Bo Lyu, Yingnan Wang, Hansong Yu
Summary: The bioactive components in soybeans have important physiological functions, but the intake of soybean trypsin inhibitor (STI) may lead to metabolic disorders. In order to investigate the impact of STI intake on pancreatic injury and its mechanism, a five-week animal experiment was conducted, and a weekly monitoring on oxidation degree and antioxidant indexes in serum and pancreas was carried out. The results showed that STI intake caused irreversible damage to the pancreas and induced oxidative stress, resulting in structural damage and dysfunction.
Article
Food Science & Technology
Yan Zhang, Sam K. C. Chang
Summary: The study showed that different temperature conditions and thermal processing methods significantly affect the antioxidant activity and phenolic content of soybean products. Hot grinding can reduce inhibitor activity, but the advantage diminishes during heating. Black soymilk has higher antioxidant capacity compared to yellow soymilk, and using UHT processing helps preserve phenolic compounds.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2022)
Article
Food Science & Technology
Xin Kong, You Li, Xinqi Liu
Summary: Soybean trypsin inhibitor (STI) was recovered from soybean whey using ammonium sulfate salting and purified to a 5.46-fold increase. Further purification using a Superdex 75 increase gel filtration column resulted in a 91.5% electrophoretically pure soybean Kunitz trypsin inhibitor (SKTI) with a purification fold of 33.32 and a specific activity of 1072.9 U/mg. SKTI exhibited good stability, maintaining 85.65% inhibitory activity after heating at 80 degrees C for 30 min and showing no significant change in activity over a pH range of 3-10.
Article
Food Science & Technology
Supatchayaporn Nitsuwat, Pangzhen Zhang, Ken Ng, Zhongxiang Fang
Summary: Despite the potential of fish gelatin as an alternative, its inferior gelling ability limits its application in the food industry. Research has shown that warm-water fish skin gelatin is the most suitable substitute for mammalian gelatin in food gel preparation.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Yihao Zhang, Yinxiao Zhang, Zhiwei Ying, Wenhui Li, He Li, Xinqi Liu
Summary: Soybean trypsin inhibitor (STI) was successfully obtained from simulated soybean whey wastewater using a sustainable method, and its stability under different temperatures, pH levels, and pepsin was investigated. Other soybean trypsin inhibitors (KTI and BBI) were also obtained through gel filtration chromatography.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Applied
Ge Ge, Wanxiang Guo, Jiabao Zheng, Mouming Zhao, Weizheng Sun
Summary: Tea polyphenols interact with soy milk protein through static quenching and hydrophobic interactions, with a main binding site at Trp residues. This interaction stabilizes the protein conformation and reduces trypsin and chymotrypsin inhibitory activities in cooked soy milk when tea polyphenols are added.
FOOD HYDROCOLLOIDS
(2021)
Article
Agriculture, Dairy & Animal Science
Natalia Cristina Milani, Vinicius Ricardo Cambito de Paula, Candida Pollyanna Francisco Azevedo, Anderson Aparecido Sedano, Lucas Bassi Scarpim, Helio Moreira Junior, Dave Hanneman Alves Duarte, Aulus Cavalieri Carciofi, Messias Alves da Trindade Neto, Urbano dos Santos Ruiz
Summary: This study evaluated the digestibility of nutrients and energy in soybean extruded at different temperatures in newly weaned piglets. The results showed that extrusion at 122°C reduced trypsin inhibitors content and improved nutrient digestibility. Therefore, soybean extruded at 122°C is recommended as a feed ingredient for young pigs.
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2022)
Article
Agriculture, Dairy & Animal Science
S. Kuenz, S. Thurner, D. Hoffmann, K. Kraft, M. Wiltafsky-Martin, K. Damme, W. Windisch, D. Brugger
Summary: This study found that trypsin inhibitor activity (TIA) can significantly decrease the digestibility of amino acids in male broiler chickens in a linear fashion. Sulfur-containing amino acids showed the strongest suppression by TIA.
Article
Agriculture, Dairy & Animal Science
A. S. Aderibigbe, A. J. Cowieson, K. M. Ajuwon, O. Adeola
Summary: The study aimed to evaluate the impact of trypsin inhibitor (TI) and exogenous protease supplementation on the endogenous loss of amino acids (AA) in broiler chickens. The results showed that TI increased the endogenous loss of AA and reduced the digestibility of minerals in broiler chickens. Additionally, exogenous protease did not affect endogenous AA flow, regardless of added purified dietary TI.
Article
Chemistry, Applied
Ima Wijayanti, Thummanoon Prodpran, Pornsatit Sookchoo, Nilesh Nirmal, Bin Zhang, Amjad Balange, Soottawat Benjakul
Summary: This study investigated the effects of adding Asian sea bass bio-calcium (ASBC) to mayonnaise. The use of ultrasonication reduced the particle size and fishy compounds of ASBC. Mayonnaise fortified with ASBC showed increased firmness, consistency, and cohesiveness. However, higher levels of ASBC led to a decrease in acceptability due to fishy odor and grittiness.
JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY
(2023)
Review
Fisheries
Elliot Mubango, Samad Tavakoli, Yueyue Liu, Yanyan Zheng, Xinrou Huang, Soottawat Benjakul, Tan Yuqing, Yongkang Luo, Hui Hong
Summary: Intermuscular bones are a common characteristic of Asian carp and pose a health risk for consumers. Ongoing research has explored various aspects of these bones, including their formation, morphology, counts, evolution, proteome, and gene function. Processing technologies have emerged as a trending topic for reducing the health threats of intermuscular bones in carp products.
REVIEWS IN FISHERIES SCIENCE & AQUACULTURE
(2023)
Article
Chemistry, Applied
Lukai Ma, Yun Cui, Feng Wang, Huifan Liu, Weiwei Cheng, Lianxin Peng, Charles Brennan, Soottawat Benjakul, Gengsheng Xiao
Summary: This study developed and evaluated a method for analyzing MDA and two toxic alpha,beta-unsaturated aldehydes using UHPLC-QqQ-MS/MS. The method had a wide linear range, low LOD and LOQ, high recovery rates, and good precision. Application of the method to food analysis allowed for the determination of MDA, HHE, and HNE contents. This method is important for studying the impact of food composition and substrate structure on the generation and distribution of these aldehydes and for implementing corresponding control methods.
Article
Food Science & Technology
Soottawat Benjakul, Phutthipong Sukkapat, Suriya Palamae, Jirakrit Saetang
Summary: Meat from broadhead catfish, African catfish, and black eel-tail catfish, whether in fresh-cut pieces, fillet, or processed form, shares similarities in appearance and texture, leading to potential adulteration or substitution between these species. To address this issue, a PCR-based authentication method using specific primers based on the COI gene was developed. The primers specifically amplified the responsible DNA for all three catfish species and had a detection limit of 0.7 ng. Cooking methods did not affect the PCR amplification efficiency. Therefore, this procedure can be used for species identification and adulteration detection among these catfish species.
FOOD ANALYTICAL METHODS
(2023)
Article
Food Science & Technology
Sylvia Indriani, Soottawat Benjakul, Tran Hong Quan, Azis Boing Sitanggang, Manat Chaijan, Pensiri Kaewthong, Tanyamon Petcharat, Supatra Karnjanapratum
Summary: Different modes of ultrasound-assisted process (UAP) enhance pepsin-soluble collagen (PSC) extraction and affect characteristics of PSC. This study aimed to evaluate the efficacy and characteristics of PSC extracted from Asian bullfrog skin using different modes of UAP (pretreatment (UP) and simultaneous treatment (US)) and ultrasonication times (15, 30, and 45 min). Both UP and US increased solid yield and recovery compared with control (without UAP). The a-amino group content and surface hydrophobicity of PSC varied according to the mode used. The protein pattern revealed the type I collagen for all PSC samples. Fourier-transform infrared spectroscopy and circular dichroism spectra indicated that UAP has a significant effect on the molecular structure, with a negligible impact on the integrity of the triple helix structure. Nevertheless, the UAP conditions applied in this study affected the structural stringency by lowering the thermal stability. UP at 30 min and US at 45 min, which displayed high extraction recovery and satisfactory triple helix structure, were selected for further analyses. The difference in isoelectric point and amino acid composition was also observed between each sample. Conclusively, both UP and US applied for appropriate time periods successfully enhanced the PSC extraction efficiency with various molecular characteristics of collagen.
FOOD AND BIOPROCESS TECHNOLOGY
(2023)
Article
Agronomy
Dongjie Liu, Feng Wang, Charles Brennan, Soottawat Benjakul, Gengsheng Xiao, Xiaoguo Ying, Lukai Ma
Summary: The quality of fresh-cut Ma bamboo shoots was evaluated using physicochemical, 16S rRNA gene sequencing, and metabolomic analyses. Lactobacillaceae, Streptococcaceae, and Enterobacteriaceae were the predominant bacteria. Melatonin and UV-C treatments inhibited Lactobacillaceae and Cyano-bacteriales, respectively. Metabolomic analysis revealed significant changes in metabolite accumulation and lignin content during storage, with melatonin and UV-C treatments improving resistance to external stress. A combined melatonin and UV-C treatment showed the best maintenance of shoot quality.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Jirakrit Saetang, Phutthipong Sukkapat, Ajay Mittal, Jakrawadee Julamanee, Wannakorn Khopanlert, Kajornkiat Maneechai, Rasool Abdul Nazeer, Surasak Sangkhathat, Soottawat Benjakul
Summary: The anti-cancer activity of the COS-GA conjugate was investigated in SW620 colon cancer cells. MTT assay showed that COS-GA and GA had a stronger anti-cancer effect than COS within 24 hours. Flow cytometry revealed 20% apoptosis after 24 hours of COS-GA treatment. Proteomic analysis revealed alterations in protein translation, DNA duplication, cytoskeleton structure, intermediate filament organization, mitochondrial nucleoid, and glycolytic processes in the different treatment groups.
Article
Nutrition & Dietetics
Jiancong Huo, Hui Yao, Jiagen Li, Jinmei Wang, Soottawat Benjakul, Bin Zhang
Summary: The physicochemical and volatile flavor properties of neon flying squid (OB), jumbo squid (DG), and Argentine squid (IA) mantles were studied during 8 days of chilled storage. The results showed that the chilled conditions caused rapid increases in pH value, TVBN, and carbonyl and MDA content of the squid mantles, while MP content decreased and springiness declined. OB mantles exhibited less chemical stability compared to the other two species. Histological observations revealed that DG mantle tissues had more compact structures. Volatile flavor analysis identified several compounds that were highly abundant in the mantles, likely due to protein and lipid decomposition, oxidation, and degradation, which varied among the different squid species. These findings provide insights into the quality changes of the three squid species during chilled storage.
FRONTIERS IN NUTRITION
(2023)
Article
Chemistry, Applied
Lirong Xu, Shihao Wang, Ailing Tian, Taorong Liu, Soottawat Benjakul, Gengsheng Xiao, Xiaoguo Ying, Yuhong Zhang, Lukai Ma
Summary: Green plum seed oil, known for its delicious flavor and nutritional benefits, was studied using headspace-gas chromatography-ion mobility spectrometry. A total of 42 volatiles were identified in the oil, with a distinct separation observed between the kernel oil and shell oil. The kernel oil contained desirable flavor compounds, while the shell oil had more fatty and pungent odor compounds. The oil was rich in oleic acid, linoleic acid, and minor bioactive components, making it a sustainable edible oil option.
Article
Food Science & Technology
Suriya Palamae, Ajay Mittal, Jirayu Buatong, Bin Zhang, Hui Hong, Soottawat Benjakul
Summary: Vibrio parahaemolyticus is a significant cause of foodborne illness when marine mussels are consumed, and the prevalence of drug-resistant isolates has made treatment more challenging. Researchers studied the inhibitory effect of shrimp shell chitooligosaccharide (COS)-cate-chin (CAT) conjugate on V. parahaemolyticus and found it could effectively inhibit the bacteria. The conjugate caused cell membrane damage, inhibited virulence factors, and showed potential as a food-grade antibacterial agent.
Article
Engineering, Environmental
Gokulprasanth Murugan, Soottawat Benjakul, Thummanoon Prodpran, Bharathipriya Rajasekaran, Ahilan Baboonsundaram, Muralidharan Nagarajan
Summary: Three-layer eco-packaging films were developed using fish skin gelatin, poly (lactic acid) (PLA), and poly (butylene adipate-co-terephthalate) (PBAT). The addition of PBAT layer improved the elasticity of the films. The inclusion of bioplastics reduced the solubility of the films in water. The developed three-layer eco-packaging materials have the potential to replace synthetic plastic packaging in the future.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2023)
Article
Engineering, Environmental
Arunachalasivamani Ponnusamy, Bharathipriya Rajasekaran, Mohamed Tagrida, Thummanoon Prodpran, Jun Tae Kim, Soottawat Benjakul
Summary: This paper presents the development of biodegradable and environmentally friendly packaging films by combining chitosan-fish gelatin and epigallocatechin-3-gallate on the top layer of polylactic acid film. Films with higher levels of EGCG had greater antioxidant activities and showed controlled release of EGCG. The bilayer films had lower thermal stability than the PLA film and exhibited different microstructure.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2023)
Article
Biochemistry & Molecular Biology
Ajay Mittal, Avtar Singh, Bin Zhang, Qiancheng Zhao, Soottawat Benjakul
Summary: The inhibitory effects of chitooligosaccharide (CHOS) conjugates, including CHOS-catechin (CHOS-CAT), CHOS-epigallocatechin gallate (CHOS-EGCG), and CHOS-gallic acid (CHOS-GAL), on Pacific white shrimp cephalothorax polyphenoloxidase (PPO) were studied. CHOS-CAT showed the strongest inhibitory activity against PPO and exhibited mixed-type inhibition. Molecular docking analysis revealed that CHOS-CAT interacts with various amino acid residues near the active site of PPO. Therefore, CHOS-CAT could serve as an anti-melanosis agent to prevent discoloration in crustaceans.
Article
Food Science & Technology
Umesh Patil, Khurshid Ahmed Baloch, Shivraj Hariram Nile, Jun Tae Kim, Soottawat Benjakul
Summary: The study aimed to purify trypsin from the pyloric caeca of Asian seabass and compare its proteolytic capability with commercial porcine trypsin. Trypsin was purified using ammonium sulphate precipitation and a soybean trypsin inhibitor column. The purified trypsin showed high stability and enzymatic activity, making it a potential alternative to commercial proteases. It also had a slightly lower hydrolysis capacity toward acid-soluble collagen compared to commercial trypsin.
Review
Food Science & Technology
Ajay Mittal, Avtar Singh, Jirayu Buatong, Jirakrit Saetang, Soottawat Benjakul
Summary: Chitooligosaccharide (CHOS), a depolymerized chitosan, has various applications as alternative additives or bioactive compounds in food and biomedical fields. Derivatives of CHOS with enhanced bioactivities, such as anti-inflammatory, anti-obesity, neuroprotective, and anti-cancer effects, have been prepared and characterized. These CHOS derivatives also exhibit improved antibacterial and antioxidant activities, which are beneficial for shelf-life extension and food safety.
Article
Chemistry, Applied
M. Graca Dias, Elsa Vasco, Francisco Ravasco, Lufsa Oliveira
Summary: This study estimated the vitamin D intake of "adults" and "elderly" populations in Portugal using the TDS methodology. The results showed that the majority of people had inadequate vitamin D intake, well below the Dietary Reference Values.
Article
Chemistry, Applied
Yanan Wang, Jiachen Shi, Yong-Jiang Xu, Chin-Ping Tan, Yuanfa Liu
Summary: This study investigates the variations in lipid digestion profiles among individuals of different ages using in vitro digestion models. The findings suggest that adults have a more comprehensive lipid digestion compared to infants, and infants tend to release shorter chain length and more saturated free fatty acids during digestion. Additionally, the particle sizes in the stomach of the elderly were consistently larger. This study enhances our understanding of how lipids with different degrees of unsaturation undergo digestion in diverse age groups.
Article
Chemistry, Applied
Hyunjong Yu, Huisu Kim, Pahn-Shick Chang
Summary: Chitosan-pectin emulsion-filled hydrogel (EFH) was developed to enhance the bioaccessibility of lipophilic bioactive compounds through intestinal delivery. The EFH, prepared without crosslinking agents, demonstrated improved mechanical strength and compactness with higher pectin concentration. It retained the emulsion at pH 2.0 and released it at pH 7.4, resulting in enhanced release of free fatty acids and improved bioaccessibility of curcumin.
Article
Chemistry, Applied
Tongze Zhang, Siqi Hong, Jia-Rong Zhang, Pin-He Liu, Siyi Li, Zixian Wen, Jianwei Xiao, Guirong Zhang, Olivier Habimana, Nagendra P. Shah, Zhongquan Sui, Harold Corke
Summary: Lactic acid fermentation significantly affects the morphology and physicochemical properties of proso millet starch, including the formation of surface indentations and small pores, decrease in gelatinization temperatures, and changes in hardness and adhesiveness.
Article
Chemistry, Applied
Liqin Kong, Feng Hong, Peng Luan, Yiping Chen, Yaoze Feng, Ming Zhu
Summary: This study presents a novel impedance biosensor using composite nanomaterials and T1R1 as a signal probe, which can competitively and ultra-sensitively detect umami intensity. The biosensor exhibits exceptional analytical performance and is suitable for food flavor evaluation.
Article
Chemistry, Applied
Kunying Lv, Yixin Yang, Qilong Li, Ran Chen, Liang Deng, Yiwei Zhang, Ning Jiang
Summary: Horse's milk, with its high nutritional value and low allergenic proteins, could be a substitute for cow's milk in infant consumption. A proteomic method was used to identify and compare milk fat globule membrane (MFGM) and whey proteins from different horse breeds. The study found differences in protein composition and functionality, which could support the development of formulas more suitable for human infants.
Article
Chemistry, Applied
Enrique Jacobo Diaz-Montana, Helene Brignot, Ramon Aparicio-Ruiz, Thierry Thomas- Danguin, Maria Teresa Morales
Summary: Sensory perception of virgin olive oil is influenced by phenols and volatiles, which are affected by the composition of the oil and biological factors. This study investigated the effect of saliva and phenols on the release of volatiles, and found that the presence of phenols decreased the release of saturated volatiles.
Article
Chemistry, Applied
Wei Zhou, Rui Zhang, Zhen Cai, Fangfang Wu, Yong Hu, Chao Huang, Kun Hu, Yun Chen
Summary: Environmentally friendly and outstanding pH-responsive cationic starch nanoparticles (CSNP) were prepared from pH-sensitive starch. CSNP exhibited nanosize and regular sphere, highly free-flowing molecular chains, and demonstrated excellent pH responsiveness through multiple emulsion/demulsification transitions.
Article
Chemistry, Applied
Andrea Koo, Vinayak Ghate, Weibiao Zhou
Summary: This study suggests that direct seeding may negatively affect the nutritional quality of crops, causing a decrease in ascorbic acid, vitamin K, and total glucosinolate content.
Article
Chemistry, Applied
Tonghao Du, Yazhou Xu, Xiaoyan Xu, Shijin Xiong, Linli Zhang, Biao Dong, Jinqing Huang, Tao Huang, Muyan Xiao, Tao Xiong, Mingyong Xie
Summary: This study successfully improved the ACE inhibitory activity of black sesame seeds by fermenting them with Lactobacillus Plantarum NCU116 and hydrolyzing them using acid protease. The RF-PSO model was used to predict the ACE inhibitory activity during the hydrolysis process. Eight peptides with ACE inhibitory activity were identified from fermented black sesame seed hydrolysates after separation and screening.
Article
Chemistry, Applied
Yao Liu, Songyi Lin, Kexin Liu, Shan Wang, Qiaozhen Liu, Na Sun
Summary: This study analyzed the structural changes of shrimp proteins during digestion, predicted the immunodominant epitopes, and validated their allergenicity. The results showed that shrimp proteins were degraded into peptides during digestion, but still carried IgE epitopes that trigger allergic reactions.
Article
Chemistry, Applied
Tiantian Fu, Hongwei Cao, Yu Zhang, Xiao Guan
Summary: This study investigates the impact of milling on the active components in rice, with a focus on the stability and bioaccessibility of phenols, VB1, and alpha-GABA during cooking and digestion. The findings show that milling exacerbates the instability of gamma-GABA during cooking and VB1 during digestion, and it affects the bioaccessibility of these active compounds.
Article
Chemistry, Applied
Zhihao Yang, Yanru Hou, Min Zhang, Puxin Hou, Chang Liu, Lu Dou, Xiaoyu Chen, Lihua Zhao, Lin Su, Ye Jin
Summary: This study investigated the molecular mechanism of feeding regimes on lamb flavor by using TMT labeling combined with MS. The results showed that pasture-fed groups had higher levels of amino acids and volatile flavor substances compared to concentrate-fed groups. Additionally, several differentially abundant proteins associated with lamb flavor were identified.
Article
Chemistry, Applied
Zixuan Xie, De Zhang, Junyu Zhu, Qianqian Luo, Jun Liu, Jingtao Zhou, Xiaoyong Wang, Yuqiong Chen, Zhi Yu, Dejiang Ni
Summary: This study investigated the acidification of aroma-enhanced black tea during storage. Analysis of non-volatile substances and organic acids using UPLC-Q-TOF/MS and HPLC revealed a decrease in soluble sugars and amino acids, while an increase in organic acids such as oxalic acid, malic acid, and quinic acid. In vitro experiments further demonstrated that the acidification is a result of the decomposition of sugars and amino acids by heating, as well as the oxidation of aromatic aldehydes. Additionally, the study showed that the taste composition of tea infusion is altered, with reduced amino acids, catechins, soluble sugars, and flavonoids. This research provides a theoretical basis for improving the quality of black tea.
Article
Chemistry, Applied
Lin Wang, Falai Ma, Zihan Li, Yan Zhang
Summary: This study developed time-temperature integrators based on amyloglucosidase@Cu3(PO4)2 nanoflowers for monitoring the freshness of chilled pork. The results showed that the integrators were highly reliable and accurate in predicting the quality of chilled pork.