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Food Science and Human Wellness 2024年第3期13卷 1168-1185页

作者： Wenhui Li Yu Xi Junru Wang Yinxiao Zhang He Li Xinqi Liu Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Engineering and Technology Research Center of Food AdditivesNational Soybean Processing Industry Technology Innovation CenterBeijing Technology and Business UniversityBeijing 100048China

Globally,the prevalence of anxiety and depression has reached epidemic ***-derived protein hydrolysates and peptides delivered through dietary supplementation can avoid the negative risks associated with traditional pharmaceuticals while delivering superior anxiolytic and antidepressant *** review summarizes current research on food-derived anxiolytic and antidepressant protein hydrolysates and peptides,and subsequently analyses their physicochemical characteristics and elaborates on their *** aim of this work is to contribute to the in-depth study and provide a theoretical foundation for the development of related products to better serve patients with anxiety and depression.

关键词： Anxiolytic Antidepressant Peptides protein hydrolysates Neurotransmitter

The effect of selected hemp seed protein hydrolysates in modulating vascular function

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Food Bioscience 2022年第1期45卷 249-256页

作者： Raiyan Mahbub Esther Callcott Shiwangni Rao Omid Ansari Daniel L.E.Waters Christopher L.Blanchard Abishek B.Santhakumar Graham Centre for Agricultural Innovation Charles Sturt UniversityWagga WaggaNew South Wales2650Australia School of Dentistry and Medical Sciences Faculty of Science and HealthCharles Sturt UniversityWagga Wagga2650New South WalesAustralia School of Animal and Veterinary Sciences Faculty of ScienceCharles Sturt UniversityWagga Wagga2650New South WalesAustralia Agriculture Victoria Research HorshamVictoria3400Australia Ecofibre Limited VirginiaQueensland4014Australia Ananda Food New South Wales2322Australia Ananda Hemp Ltd CynthianaKYUSA

Reduced bioavailability of nitric oxide along with an increase in inflammatory cytokines,reactive oxygen species,cell adhesion molecules,and platelet hyperactivity are underlying causes of endothelial *** peptides derived from various plants have been shown to attenuate biomarkers of endothelial *** objective of this study was to determine the effects of hemp seed protein hydrolysates(HSPH)in modulating biomarkers of endothelial dysfunction using an in vitro cell culture model and an ex vivo platelet activity *** cells were treated with HSPH from commercial variant X and ECO-commercial variant Y,followed by hydrogen peroxide to simulate oxidative stress and *** of endothelial dysfunction were then measured to determine the protective properties of *** samples collected from healthy volunteers were used to determine the effect of the HSPH on ADP and hydrogen peroxide-induced platelet activity,using flow *** HSPH reduced the production of reactive oxygen species,inflammatory cytokines IL-8,IL-12p70 and IL-1β,and adhesion molecule vascular cell adhesion molecule ***,treatment with HSPH also reduced platelet activation marker CD62P ex *** results obtained from this study suggest HSPH alleviates biomarkers of endothelial dysfunction by reducing oxidative stress,inflammation and platelet activation.

关键词： Hemp seed protein hydrolysates Endothelial dysfunction Platelet activity Inflammation Antioxidant properties

Investigation of hydrolysis conditions and properties on protein hydrolysates from flatfish skin

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Frontiers of Chemical Science and Engineering 2013年第3期7卷 303-311页

作者： Hua ZHANG Hongji ZHU Shipeng WANG Weihua WANG Key Laboratory of Systems Bioengineering (Ministry of Education) School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China

Response surface method （RSM）, based on Box-Behnken design, was used to optimize the enzymatic hydrolysis conditions of flatfish skin protein hydrolysates （FSPH）. Among the tested proteases, the combination of nutrase and trypsin was selected. The optimal hydrolysis conditions were as follows： pH 7.3, temperature 51.8℃, and the enzyme/substrate （E/S） ratio 2.5; under these conditions, the maximum peptide yield （PY） was 69.41 =1：0.43%. The physiochemical analysis showed that the amino acids （His, Asp and Glu） of FSPH accounted for 18.15%, and FSPH was a mixture of polypeptides mostly distributed among 900-2000 Da. FSPH could exhibit a 93% chelating effect on ferrous ion at a concentration of 400 gg/mL, and also a notable reducing power. This study showed bioprocess for the production of FSPH for the first time, which had a good potential for valuable ingredients in the food, cosmetic and medicine industries.

关键词： flatfish skin protein hydrolysates metal chelating activity reducing power

Effects of brewers' spent grain protein hydrolysates on gas production, ruminal fermentation characteristics, microbial protein synthesis and microbial community in an artificial rumen fed a high grain diet

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Journal of Animal Science and Biotechnology 2021年第1期12卷 314-327页

作者： Tao Ran Long Jin Ranithri Abeynayake Atef Mohamed Saleem Xiumin Zhang Dongyan Niu Lingyun Chen Wenzhu Yang Agriculture and Agri-Food of Canada Lethbridge Research and Development CentreLethbridgeAB T1J 4B1Canada Key Laboratory for Agro-Ecological Processes in Subtropical Region Institute of Subtropical AgricultureChinese Academy of SciencesChangsha 410125HunanChina College of Veterinary Medicine University of Calgary2500 University Dr.NWCalgaryAB T2N 1N4Canada Department of Agricultural Food and Nutritional ScienceUniversity of AlbertaEdmonton T6G 2P5Canada Department of Animal and Poultry Production Faculty of AgricultureSouth Valley UniversityQena 83523Egypt.

Background: Brewers' spent grain(BSG) typically contains 20% – 29% crude protein(CP) with high concentrations of glutamine, proline and hydrophobic and non-polar amino acid, making it an ideal material for producing valueadded products like bioactive peptides which have antioxidant properties. For this study, protein was extracted from BSG, hydrolyzed with 1% alcalase and flavourzyme, with the generated protein hydrolysates(AlcH and FlaH)showing antioxidant activities. This study evaluated the effects of AlcH and FlaH on gas production, ruminal fermentation characteristics, nutrient disappearance, microbial protein synthesis and microbial community using an artificial rumen system(RUSITEC) fed a high-grain ***: As compared to the control of grain only, supplementation of FlaH decreased(P < 0.01) disappearances of dry matter(DM), organic matter(OM), CP and starch, without affecting fibre disappearances;while AlcH had no effect on nutrient disappearance. Neither AlcH nor FlaH affected gas production or VFA profiles, however they increased(P < 0.01) NH_3-N and decreased(P < 0.01) H_2 production. Supplementation of FlaH decreased(P < 0.01)the percentage of CH_4 in total gas and dissolved-CH_4(dCH_4) in dissolved gas. Addition of monensin reduced(P < 0.01) disappearance of nutrients, improved fermentation efficiency and reduced CH_4 and H_2 *** microbial nitrogen production was decreased(P < 0.05) but the proportion of feed particle associated(FPA) bacteria was increased with FlaH and monensin supplementation. Numbers of OTUs and Shannon diversity indices of FPA microbial community were unaffected by AlcH and FlaH;whereas both indices were reduced(P < 0.05) by monensin. Taxonomic analysis revealed no effect of AlcH and FlaH on the relative abundance(RA) of bacteria at phylum level, whereas monensin reduced(P < 0.05) the RA of Firmicutes and Bacteroidetes and enhanced Proteobacteria. Supplementation of FlaH enhanced(P < 0.05) the RA of genus Prevotell

关键词： Antioxidant peptide Brewers'spent grain Fermentation Hydrogen production Methane production protein hydrolysates RUSITEC

Antioxidant potential and physicochemical properties of protein hydrolysates from body parts of North Atlantic sea cucumber(Cucumaria frondosa)

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Food Production, Processing and Nutrition 2021年第1期3卷 48-69页

作者： Tharindu R.L.Senadheera Deepika Dave Fereidoon Shahidi Department of Biochemistry Memorial University of NewfoundlandSt.John’sNL A1B 3X9Canada Marine Bioprocessing Facility Centre of Aquaculture and Seafood DevelopmentFisheries and Marine InstituteMemorial University of NewfoundlandSt.John’sNL A1C 5R3Canada

protein hydrolysates were prepared from North Atlantic sea cucumber(Cucumaria frondosa)body wall(BW),and processing by-product flower(FL)and internal organs(IN).Sea cucumber proteins from these three tissues were hydrolysed with selected endopeptidases and *** enzymes used were Alcalase(A),and Corolase(C)as endopeptidases and Flavourzyme(F)with both endo-and exopeptidase *** were employed individually or in combination under controlled *** hydrolysates so prepared were subsequently analysed for their antioxidant potential and functionalities in food systems for the first *** treated with the combination of A and F exhibited the highest radical scavenging activity against DPPH and ABTS *** highest metal chelation activity was observed for samples hydrolysed with the combination of enzymes(C+F and A+F).All treatments inhibited beta-carotene bleaching in an oil-in-water emulsion and TBARS production in a meat model *** addition,sea cucumber protein hydrolysates were more than 75%soluble over a pH range of 2–*** proteins were also effective in enhancing water holding capacity in a meat model system compared to their untreated *** amino acids of sea cucumber protein hydrolysates had desirable profiles with glutamic acid as the predominant component in samples *** findings demonstrate the desirable functionalities of hydrolysates from North Atlantic sea cucumber and their potential for use as functional food ingredients.

关键词： Sea cucumber protein hydrolysates Antioxidant activity Physicochemical properties

Lima Bean(Phaseolus lunatus)protein hydrolysates with ACE-I Inhibitory Activity

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Food and Nutrition Sciences 2012年第4期3卷 511-521页

作者： Luis Chel-Guerrero Mario Domínguez-Magana Alma Martínez-Ayala Gloria Dávila-Ortiz David Betancur-Ancona Facultad de Ingeniería Química Universidad Autónoma de YucatánMéridaMéxico Escuela Nacional de Ciencias Biológicas Instituto Politécnico NacionalMiguel HidalgoMéxico Centro de Investigación en Biotecnología Aplicada Instituto Politécnico NacionalTlaxcalaMéxico

Several protein sources can be used to produce bioactive peptides with angiotensin I-converting enzyme (ACE) inhibittory activity. protein concentrates from ungerminated and germinated lima bean Phaseolus lunatus seed flours were hydrolyzed with Alcalase 2.4 L or pepsin-pancreatin sequential hydrolysis, and ACE inhibitory activity measured in the different hydrolysis treatments. protein hydrolysate production was analyzed with a 23 factorial design with four replicates of the central treatment. Evaluated factors were protein concentrate source (ungerminated seeds, PC1;germinated seeds, PC2), enzyme/substrate ratio E/S (1/50 or 1/10) and hydrolysis time (0.5 or 2.0 h for Alcalase;1 or 3 h for pepsin-pancreatin). Degree of hydrolysis (DH) was high for the Alcalase hydrolysates (24.12% 58.94%), but the pepsin-pancreatin hydrolysates exhibited the highest ACE inhibitory activity (IC50 = 0.250 0.692 mg/mL). Under the tested conditions, the hydrolysates with the highest ACE inhibitory activity were produced with sequential pepsin-pancreatin using either PC1 at 1 h hydrolysis time and a 1/10 E/S ratio or PC2 at 1 h hydrolysis time and a 1/50 E/S ratio. Lima bean protein hydrolysates prepared with Alcalase or pepsin-pancreatin are a potential ingredient in the production of physiologically functional foods with antihypertensive activity.

关键词： Lima Bean Degree of Hydrolysis ACE Inhibition protein hydrolysates IC50

Effect of Different Treatments on Antioxidative Stability of the Scallop protein hydrolysates

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Food and Nutrition Sciences 2020年第7期11卷 603-614页

作者： Na Lin Ang Hu Zhidong Liu East China Sea Fisheries Research Institute Chinese Academy of Fishery Sciences Shanghai China Key Laboratory of Oceanic and Polar Fisheries Ministry of Agriculture Shanghai China

Effects of different treatments on the antioxidant activity of scallop protein hydrolysates (SPH) were evaluated using DPPH radical scavenging activity and reducing power. Results showed that the antioxidant activity of SPH had good heating-resistance from 25°C to 65°C. The antioxidant activity of SPH could retain under acidic environment, but rapidly reduced under alkaline conditions. Addition of D-galactose, D-xylose, and D-fructose at 65°C could increase the antioxidant activity of SPH, but no such effect was not observed at this temperature. With the increase of storage time, the antioxidant activity of SPH gradually decreased. Moreover, pepsin digestion treatment slightly reduced the antioxidant activity of SPH, and further trypsin and mixed enzyme (trypsin + chymotrypsin) digestion significantly reduced this activity (p 0.05). In conclusion, SPH may be used as food ingredients or food supplements in different food fields.

关键词： Argopecten irradias protein hydrolysates Antioxidant Activity Stability Treatment

Systematic functional analysis and potential application of a serine protease from cold-adapted Planococcus bacterium

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Food Science and Human Wellness 2023年第5期12卷 1751-1761页

作者： Weijun Leng Xiaoyun Wu Xianghui Qi Hongying Liu Li Yuan Ruichang Gao School of Food and Biological Engineering Jiangsu UniversityZhenjiang 212013China Ocean College of Hebei Agriculture University Qinhuangdao 066000China

In this study, a gene encoding serine protease(PmSpr288)from cold-adapted bacterium, namely Planococcus maritimus XJ11, was cloned and overexpressed in Escherichia coli BL21(DE3). Bioinformatics analysis revealed that PmSpr288 belongs to serine protease S8 superfamily with a classical catalytic triad comprised by the Asp49, His86 and Ser251. Moreover, PmSpr288 was found to be active over broad alkaline pH and low-moderate temperature, and exhibited wide range of protein substrate specificity. In addition, PmSpr288 was able to hydrolyze the meat proteins actin and myosin, and molecular docking results suggested that the crucial interaction between PmSpr288 and actin/myosin complexes was mainly occupied by hydrogen bonds. The muscle protein hydrolysates of silver carp prepared by PmSpr288 was shown to have antioxidant activity via DPPH radical scavenging assay, which presented an IC_(50) valve of 1.309 mg/mL. In conclusion, these characteristics imply that PmSpr288 has potential biotechnological application prospect for the production of bioactive peptides.

关键词： Protease Silver carp protein hydrolysates Molecular docking Bioactive peptides

Recovery of Residual Brewer’s Yeast by Electroactivation

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Food and Nutrition Sciences 2021年第12期12卷 1177-1190页

作者： Ruslan Tarna Elvira Vrabie Irina Paladii Rodica Sturza Technical University of Moldova Chisinau Republic of Moldova Institute of Applied Physics Chisinau Moldova

Yeasts resulting from the brewing process (RBY) are a valuable by-product, with an important content of minerals, vitamins and, especially, proteins. The purpose of the research was the electroactivation of RBY and the simultaneous obtaining of two products—protein concentrates and hydrolyzed protein from residual brewer’s yeast. Electroactivation is a non-residual process, without the use of chemical reagents and relatively inexpensive. The variation of the electroactivation conditions allowed the separation of 90% - 94% of the proteins in the form of protein concentrates. During the process, it is attested to increase the pH value and decrease the redox potential, which characterizes the multiple redox processes that take place in the cathode cell, including sedimentation at the isoelectric point. The presence of albumin in the protein fractions of RBY allows the formation of protein complexes with calcium, attributing a higher biological value to the obtained products.

关键词： Brewer’s Yeast Electroactivation Redox Potential protein Concentrates protein hydrolysates Calcium

protein-enriched sports beverages for both endurance athletes and their supporters

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Protein-enriched sports beverages for both endurance athlete...