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Kantaras P, Kokkinopoulou A, Hageman JHJ, Hassapidou M, Androutsos O, Kanaki M, Bovee-Oudenhoven I, Karaglani E, Kontochristopoulou AM, Bos R, Manios Y. Growth and gut comfort of healthy term infants exclusively fed with a partially hydrolysed protein-based infant formula: a randomized controlled double-blind trial. Front Pediatr 2024; 12:1328709. [PMID: 38827219 PMCID: PMC11141394 DOI: 10.3389/fped.2024.1328709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 04/29/2024] [Indexed: 06/04/2024] Open
Abstract
Objective This study aimed to investigate growth and gut comfort of healthy infants fed with a partially hydrolysed cow's milk protein-based infant formula (pHF) compared to a standard intact cow's milk protein-based formula (IPF). Methods A double-blind, multi-center, randomized, controlled trial was performed. Healthy full-term, exclusively formula-fed infants (n = 345), aged ≤28 days were allocated to consume either a pHF (n = 173) or an IPF (n = 172) until the age of 17 weeks. The primary outcome was equivalence of weight gain (g/d) until the age of 17 weeks. The secondary outcomes were equivalence of other growth parameters, i.e., infants' weight, length, head circumference, body mass index (BMI) and anthropometric Z-scores, while tertiary outcomes were gut comfort, formula intake, and adverse events (AEs). Results Overall, 288 infants completed the study (pHF group: 138, IPF group: 150). No differences were observed between the two groups in weight gain (g/d) during the three-months intervention [p = 0.915 for the Per Protocol (PP) population]. The 90% CI was [-1.252 to 1.100] being within the pre-defined equivalence margin of ±3.0 g/d. Similar findings were observed in the Full Analysis Set (FAS) and the sensitivity analysis. Regarding the secondary outcomes, no differences over the intervention period were shown between the two groups in both the PP and FAS analysis sets. Average Z-scores were in the normal range based on World Health Organization (WHO) growth standards for both groups at all time points in both analysis sets. Stool consistency, amount, and colour were different in the two groups. No differences were observed in gut comfort, stool frequency, and formula intake, between the two groups. In total 14 AEs and 22 serious adverse events (SAEs) were reported of which 15 (12%) and 1 (5%) were considered as (possibly) related to the study product, respectively. Conclusions The study demonstrates that the consumption of pHF results in adequate infant growth, equivalent to that of infants consuming IPF. Furthermore, the overall gut comfort was comparable between the two groups. Therefore, it can be concluded that the pHF is safe for and well tolerated by healthy infants. Clinical Trial Registration https://clinicaltrials.gov/study/NCT05757323?id=NCT05757323&rank=1, identifier (NCT05757323).
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Affiliation(s)
- Paris Kantaras
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, Athens, Greece
| | - Anna Kokkinopoulou
- Department of Nutritional Sciences and Dietetics, School of Health Sciences, International Hellenic University, Thessaloniki, Greece
| | | | - Maria Hassapidou
- Department of Nutritional Sciences and Dietetics, School of Health Sciences, International Hellenic University, Thessaloniki, Greece
| | - Odysseas Androutsos
- Lab of Clinical Nutrition-Dietetics, Department of Nutrition and Dietetics, School of Physical Education, Sport Science and Dietetics, University of Thessaly, Trikala, Greece
| | - Maria Kanaki
- Lab of Clinical Nutrition-Dietetics, Department of Nutrition and Dietetics, School of Physical Education, Sport Science and Dietetics, University of Thessaly, Trikala, Greece
| | | | - Eva Karaglani
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, Athens, Greece
| | | | - Rolf Bos
- FrieslandCampina, Amersfoort, Netherlands
| | - Yannis Manios
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, Athens, Greece
- Institute of Agri-Food and Life Sciences, Hellenic Mediterranean University Research Centre, Heraklion, Greece
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Xiang Q, Xia Y, Fang S, Zhong F. Enzymatic debittering of cheese flavoring and bitterness characterization of peptide mixture using sensory and peptidomics approach. Food Chem 2024; 440:138229. [PMID: 38159315 DOI: 10.1016/j.foodchem.2023.138229] [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: 08/08/2023] [Revised: 12/09/2023] [Accepted: 12/15/2023] [Indexed: 01/03/2024]
Abstract
Peptides in cheese flavoring produced through proteolysis plus fermentation generated bitterness. Bitterness of individual peptide can be quantified using quantitative structure-activity relationship, where molecular mass (M), hydrophobicity, residues, C-terminal hydrophobic amino acids (C-HAAs), and N-terminal basic ones (N-BAAs) are crucial. However, their accumulative influence on the overall bitterness of peptide mixture remains unknown. This study delved into extensive proteolysis to debitter and to correlate the multi-influencing factors of peptides and the collective bitterness. As hydrolysis increased from 7.5 % to 28.0 %, bitterness reduced from 5.0 to 0.3-2.7 scores, contingent on proteases used, in which FU was optimal. The overall bitterness cannot be predicted through the summation of individual peptide bitterness, which depended on M (0.5-3 kDa) and 5-23 residues, followed by N-BAAs and C-HAAs. Analysis of enzymatic cleavage sites and substrate characteristics revealed, to more effectively debitter bovine milk protein hydrolysates, proteases specifically cleaving Pro, Leu, Phe, and Val were desired.
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Affiliation(s)
- Qin Xiang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; Science Center for Future Foods, Jiangnan University, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China; International Joint Laboratory for Food Safety, Jiangnan University, Wuxi, 214122, China
| | - Yixun Xia
- Science Center for Future Foods, Jiangnan University, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China; Jiaxing Institute of Future Food, Jiaxing 314015, China
| | - Sicong Fang
- School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
| | - Fang Zhong
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; Science Center for Future Foods, Jiangnan University, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China; International Joint Laboratory for Food Safety, Jiangnan University, Wuxi, 214122, China.
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3
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Li J, Zhu F. Whey protein hydrolysates and infant formulas: Effects on physicochemical and biological properties. Compr Rev Food Sci Food Saf 2024; 23:e13337. [PMID: 38578124 DOI: 10.1111/1541-4337.13337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 03/08/2024] [Accepted: 03/15/2024] [Indexed: 04/06/2024]
Abstract
Whey protein hydrolysates are recognized for their substantial functional and biological properties. Their high digestibility and amino acid composition make them a valuable ingredient to hydrolyzed whey infant formulas, enhancing both product functionality and nutritional values for infant growth. It is important to understand the functional and biological properties of whey protein hydrolysates for their applications in infant formula systems. This review explored preparation methods of whey protein hydrolysates for infant formula-based applications. The effects of whey protein hydrolysate on the physicochemical and biological properties of hydrolyzed whey infant formulas were summarized. The influences of whey protein hydrolysates on the functional and nutritional properties of formulas from manufacturing to infant consumption were discussed. Whey protein hydrolysates are crucial components in the preparation of infant formula, tailored to meet the functional and nutritional demands of the product. The selection of enzyme types and hydrolysis parameters is decisive for obtaining "optimal" whey protein hydrolysates that match the intended characteristics. "Optimal" whey protein hydrolysates offer diverse functionalities, including solubility, emulsification and production stability to hydrolyzed whey infant formulas during manufacturing processes and formulations. They simultaneously promote protein digestibility, infant growth and other potential health benefits, including reduced allergenic potential, as supported by in vitro, in vivo and clinical trials. Overall, the precise selection of enzymes and hydrolysis parameters in the production of whey protein hydrolysates is crucial in achieving the desired characteristics and functional benefits for hydrolyzed whey infant formulas, making them critical in the development of infant nutrition products.
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Affiliation(s)
- Jiecheng Li
- School of Chemical Sciences, The University of Auckland, Auckland, New Zealand
| | - Fan Zhu
- School of Chemical Sciences, The University of Auckland, Auckland, New Zealand
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4
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Zhang R, Jia W. Systematic investigation on the multi-scale mechanisms of bitter peptide self-assembly for flavor modulation. Food Chem 2024; 430:137063. [PMID: 37541037 DOI: 10.1016/j.foodchem.2023.137063] [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: 05/17/2023] [Revised: 07/15/2023] [Accepted: 07/28/2023] [Indexed: 08/06/2023]
Abstract
Suppressing the aversive bitterness of bioactive peptides is an arduous task as it hinders product acceptability. Three acquisition modes (ddMS2, vDIA, and mDIA) of high-resolution mass spectrometry (HRMS) were designed for structure confirmation and accurate quantification of HPFLEWAR, with the mDIA mode chosen as optimum. HRMS and isothermal titration calorimetry was used to elucidate the mechanism that β-lactoglobulin self-assemble to form association complex in 1:1 stoichiometric ratio (ΔG value - 29.36 kJ mol-1), which automatically attracted HPFLEWAR and reduces its distribution in free form, downgraded the level of bitter perception. Proteomics experiments and molecular dynamics simulations was built to discovered that HPFLEWAR bound and stabilized in the negatively charged region of β-lactoglobulin via four hydrogen bonds (Lys69, Ile72, Asp53, and Glu74) and hydrophobic interactions. These findings were considered to give theoretical foundation for strictly controlling the bitter perception of peptides and the possible application of HPFLEWAR as new functional components.
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Affiliation(s)
- Rong Zhang
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Wei Jia
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China; Shaanxi Research Institute of Agricultural Products Processing Technology, Xi'an 710021, China.
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Arumugham T, Krishnamoorthy R, AlYammahi J, Hasan SW, Banat F. Spray dried date fruit extract with a maltodextrin/gum arabic binary blend carrier agent system: Process optimization and product quality. Int J Biol Macromol 2023; 238:124340. [PMID: 37028633 DOI: 10.1016/j.ijbiomac.2023.124340] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/26/2023] [Accepted: 04/02/2023] [Indexed: 04/09/2023]
Abstract
Bioactive compounds can be protected from degradation through encapsulation, increasing their bioavailability and shelf life. Spray drying is an advanced encapsulation technique mainly used for the processing of food-based bioactives. In this study, Box-Behnken design (BBD)-based response surface methodology (RSM) was used to study the effects of combined polysaccharide carrier agents and other spray drying parameters on encapsulating date fruit sugars obtained from a supercritical assisted aqueous extraction. The spray drying parameters were set at various levels: Air inlet temperature (150-170 °C), feed flow rate (3-5 mL/min), and carrier agent concentration (30-50 %). Under the optimized conditions (inlet temperature of 170 °C, the feed flow rate of 3 mL/min, and carrier agent concentration of 44 %), a maximum sugar powder yield of 38.62 % with 3.5 % moisture, 18.2 % hygroscopicity and 91.3 % solubility was obtained. The tapped density and particle density of the dried date sugar were estimated as 0.575 g cm-3 and 1.81 g cm-3, respectively, showing its potential for easy storage. In addition, scanning electron microscope (SEM) and X-ray diffraction (XRD) analysis revealed better microstructural stability of the fruit sugar product, which is essential for commercial applications. Thus, the hybrid carrier agent system (maltodextrin and gum arabic) can be considered a potential carrier agent for producing stable date sugar powder with longer shelf-life and desirable characteristics in the food industry.
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Affiliation(s)
- Thanigaivelan Arumugham
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates; Center for Membranes and Advanced Water Technology (CMAT), Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - Rambabu Krishnamoorthy
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
| | - Jawaher AlYammahi
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - Shadi W Hasan
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates; Center for Membranes and Advanced Water Technology (CMAT), Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - Fawzi Banat
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
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Yan J, Tong H. An overview of bitter compounds in foodstuffs: Classifications, evaluation methods for sensory contribution, separation and identification techniques, and mechanism of bitter taste transduction. Compr Rev Food Sci Food Saf 2023; 22:187-232. [PMID: 36382875 DOI: 10.1111/1541-4337.13067] [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: 03/15/2022] [Revised: 08/24/2022] [Accepted: 10/11/2022] [Indexed: 11/17/2022]
Abstract
The bitter taste is generally considered an undesirable sensory attribute. However, bitter-tasting compounds can significantly affect the overall flavor of many foods and beverages and endow them with various beneficial effects on human health. To better understand the relationship between chemical structure and bitterness, this paper has summarized the bitter compounds in foodstuffs and classified them based on the basic skeletons. Only those bitter compounds that are confirmed by human sensory evaluation have been included in this paper. To develop food products that satisfy consumer preferences, correctly ranking the key bitter compounds in foodstuffs according to their contributions to the overall bitterness intensity is the precondition. Generally, three methods were applied to screen out the key bitter compounds in foods and beverages and evaluate their sensory contributions, including dose-over-threshold factors, taste dilution analysis, and spectrum descriptive analysis method. This paper has discussed in detail the mechanisms and applications of these three methods. Typical procedures for separating and identifying the main bitter compounds in foodstuffs have also been summarized. Additionally, the activation of human bitter taste receptors (TAS2Rs) and the mechanisms of bitter taste transduction are outlined. Ultimately, a conclusion has been drawn to highlight the current problems and propose potential directions for further research.
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Affiliation(s)
- Jingna Yan
- College of Food Science, Southwest University, Chongqing, China
| | - Huarong Tong
- College of Food Science, Southwest University, Chongqing, China
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Chi X, Guo H, Zhang Y, Zheng N, Liu H, Wang J. E-nose, E-tongue Combined with GC-IMS to Analyze the Influence of Key Additives during Processing on the Flavor of Infant Formula. Foods 2022; 11:foods11223708. [PMID: 36429300 PMCID: PMC9689958 DOI: 10.3390/foods11223708] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 11/07/2022] [Accepted: 11/14/2022] [Indexed: 11/22/2022] Open
Abstract
In order to analyze the influence of key additives during processing on the flavor of infant formula, the headspace-gas chromatography-ion mobility spectrometry, electronic tongue, and electronic nose techniques were used to evaluate flavor during the processing of stage 1 infant formula milk powder (0-6 months), including the analysis of seven critical additives. A total of 41 volatile compounds were identified, involving 12 aldehydes, 11 ketones, 9 esters, 4 olefins, 2 alcohols, 2 furans, and 1 acid. The electronic nose metal oxide sensor W5S had the highest response, followed by W1S and W2S, illustrating that these three sensors had great effects on distinguishing samples. The response results of the electronic tongue showed that the three sensory attributes of bitter, salty, and umami, as well as the richness of aftertaste, were more prominent, which contributed significantly to evaluating the taste profile and distinguishing among samples. Raw milk is an essential control point in the flavor formation process of stage 1 infant formula milk powder. Demineralized whey powder is the primary source of potential off-flavor components in hydrolyzed milk protein infant formula. This study revealed the quality characteristics and flavor differences of key additives in the production process of stage 1 infant formula milk powder, which could provide theoretical guidance for the quality control and sensory improvement of the industrialized production of infant formula.
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Affiliation(s)
- Xuelu Chi
- College of Animal Science, Xinjiang Agriculture University, Urumchi 830091, China
- Key Laboratory of Quality & Safety Control for Milk and Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Hongxia Guo
- Key Laboratory of Quality & Safety Control for Milk and Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yangdong Zhang
- Key Laboratory of Quality & Safety Control for Milk and Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Nan Zheng
- Key Laboratory of Quality & Safety Control for Milk and Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Huimin Liu
- Key Laboratory of Quality & Safety Control for Milk and Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- Correspondence: (H.L.); (J.W.)
| | - Jiaqi Wang
- College of Animal Science, Xinjiang Agriculture University, Urumchi 830091, China
- Key Laboratory of Quality & Safety Control for Milk and Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- Correspondence: (H.L.); (J.W.)
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Yang Z, Wang J, Han Z, Blank I, Meng F, Wang B, Cao Y, Tian H, Chen C. Isolation, identification and sensory evaluation of kokumi peptides from by-products of enzyme-modified butter. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:6668-6675. [PMID: 35608931 DOI: 10.1002/jsfa.12034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 05/20/2022] [Accepted: 05/24/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Enzyme-modified butter is used as a common raw material to obtain a natural milk flavor. Butter protein is a by-product in butter processing that can be used as substrate to produce taste-active peptides, which can create additional value and new application opportunities, making the method more environmentally friendly. RESULTS Putative kokumi peptides from hydrolysates of protein by-products were isolated by gel filtration chromatography and reversed-phase high-performance liquid chromatography. The isolated peptide fraction with the most pronounced kokumi taste was screened by sensory evaluation and electronic tongue analysis. Eleven peptides were identified by matrix-assisted laser desorption/ionization-time of flight mass spectrometry. Six peptides were synthesized to verify their taste characteristics. Five synthetic peptides (FTKK, CKEVVRNANE, EELNVPG, VPNSAEER and YPVEPFTER) showed different intensity levels of kokumi taste. Of these peptides, the decapeptide CKEVVRNANE had the highest kokumi intensity. CONCLUSION The newly identified kokumi peptides increased the kokumi taste intensity and showed some synergistic effect with umami taste. Both termini of the peptides seem to play an important role in taste characteristic. Glu residue at both termini can increase the kokumi taste intensity. This work indicated that it was feasible to produce kokumi peptides by enzymatic hydrolysis of the protein by-products of butter. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Zhijie Yang
- School of Food and Health, Beijing Technology and Business University, Beijing, China
| | - Jiao Wang
- School of Food and Health, Beijing Technology and Business University, Beijing, China
| | - Zhaosheng Han
- School of Food and Health, Beijing Technology and Business University, Beijing, China
| | - Imre Blank
- Zhejiang Yiming Food Co. Ltd, Wenzhou, China
| | - Fanyu Meng
- School of Food and Health, Beijing Technology and Business University, Beijing, China
| | - Bei Wang
- School of Food and Health, Beijing Technology and Business University, Beijing, China
| | - Yanping Cao
- School of Food and Health, Beijing Technology and Business University, Beijing, China
| | - Huaixiang Tian
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai, China
| | - Chen Chen
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai, China
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Li H, Yang J, Qin A, Yang F, Liu D, Li H, Yu J. Milk protein hydrolysates obtained with immobilized alcalase and neutrase on magnetite nanoparticles: Characterization and antigenicity study. J Food Sci 2022; 87:3107-3116. [PMID: 35638323 DOI: 10.1111/1750-3841.16189] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 04/08/2022] [Accepted: 04/25/2022] [Indexed: 01/14/2023]
Abstract
Enzymatic hydrolysis is the most commonly used method to reduce the antigenicity of milk protein, but free protease is unstable and difficult to recycle after application. In this study, alcalase and neutrase were selected for immobilization on the modified magnetic Fe3 O4 nanoparticles. The reusability of the immobilized enzyme was 68.23% of the total starting activity after 5 recycling batches. The optimal hydrolysis conditions were an enzyme to substrate ratio of 6000 U/g and reaction at 50℃ and pH 8.5 for 3 h. Under these conditions, 22.76% hydrolysis of hydrolysate was achieved, and the antigenicity reduction rates of β-lactoglobulin and casein were 21.34% and 30.89%, respectively. In addition, 82.75% of the hydrolysate had a molecular weight less than 1 kDa, and free amino acids represented 13.65% of the sample. This result showed that the hydrolysis with immobilized enzyme was similar to that with free enzyme and the immobilized enzyme could be applied to produce hypoallergenic hydrolysate. PRACTICAL APPLICATION: Reduces milk protein allergenicity.
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Affiliation(s)
- Hongbo Li
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin Economic-Technological Development Area (TEDA), Tianjin, China
| | - Jingjing Yang
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin Economic-Technological Development Area (TEDA), Tianjin, China
| | - Airong Qin
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin Economic-Technological Development Area (TEDA), Tianjin, China
| | - Feifei Yang
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin Economic-Technological Development Area (TEDA), Tianjin, China
| | - Dingkuo Liu
- Dingzheng Xinxing Biotechnology (Tianjin) Co., Ltd., Taifeng Road, TEDA, Tianjin, China
| | - Hongjuan Li
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin Economic-Technological Development Area (TEDA), Tianjin, China
| | - Jinghua Yu
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin Economic-Technological Development Area (TEDA), Tianjin, China
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10
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Gao B, Hu X, Xue H, Li R, Liu H, Han T, Ruan D, Tu Y, Zhao Y. Isolation and screening of umami peptides from preserved egg yolk by nano-HPLC-MS/MS and molecular docking. Food Chem 2022; 377:131996. [PMID: 34998156 DOI: 10.1016/j.foodchem.2021.131996] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 11/27/2021] [Accepted: 12/29/2021] [Indexed: 12/17/2022]
Abstract
The material basis leading to the rich umami flavor of preserved egg yolk is poorly understood. This study used nano-high-performance liquid chromatography - tandem mass spectrometry (nano-HPLC-MS/MS) to isolate, identify, and screen umami peptides from preserved egg yolk. Five novel umami peptides-AGFMPLP, APYSGY, PPMF, SLSSLMK, and VAMNPVDHPH-were identified. Molecular docking showed that Phe527 on the taste receptor T1R1/T1R3 (T1R1, taste receptor type 1 member 1; T1R3, taste receptor type 1 member 3) was the key interaction site. Hydrogen bonding, electrostatic interactions, and hydrophobic interactions were the main binding forces between T1R1/T1R3 and umami peptides. These results contribute to understanding the umami peptides in preserved egg yolk and the interaction mechanism between umami peptides and umami receptors.
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Affiliation(s)
- Binghong Gao
- Engineering Research Center of Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China
| | - Xiaobo Hu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Hui Xue
- Engineering Research Center of Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China
| | - Ruiling Li
- Engineering Research Center of Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China
| | - Huilan Liu
- Engineering Research Center of Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China
| | - Tianfeng Han
- Engineering Research Center of Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China
| | - Dandan Ruan
- Hubei Shendan Health Food Co. Ltd, Xiaogan 430000, China
| | - Yonggang Tu
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang 330045, China
| | - Yan Zhao
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang 330045, China.
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11
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Li J, Zhai J, Gu L, Su Y, Gong L, Yang Y, Chang C. Hen egg yolk in food industry - A review of emerging functional modifications and applications. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.06.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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