Influence of heat treatment and calcium sequestering salts on in vitro protein digestion in blends of skimmed buffalo and bovine milk

This study investigated the impact of the addition of 5 mM trisodium citrate (TSC) or disodium hydrogen phosphate (DSHP) and heat treatment (85 or 95 °C for 5 min) on the in vitro gastrointestinal digestibility of proteins in blends (0:100, 25:75, 50:50, 75:25, 100:0) of skimmed buffalo and bovine m...

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Main Authors: Carolyn T. Mejares, Thom Huppertz, Jayani Chandrapala
Format: Article
Language:English
Published: Elsevier 2024-12-01
Series:Food Chemistry Advances
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2772753X24001758
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author Carolyn T. Mejares
Thom Huppertz
Jayani Chandrapala
author_facet Carolyn T. Mejares
Thom Huppertz
Jayani Chandrapala
author_sort Carolyn T. Mejares
collection DOAJ
description This study investigated the impact of the addition of 5 mM trisodium citrate (TSC) or disodium hydrogen phosphate (DSHP) and heat treatment (85 or 95 °C for 5 min) on the in vitro gastrointestinal digestibility of proteins in blends (0:100, 25:75, 50:50, 75:25, 100:0) of skimmed buffalo and bovine milk. Digestibility of proteins decreased with increasing proportion of buffalo skim milk, irrespective of heat treatment and calcium sequestering salt (CSS) addition. Heat treatment alone did not induce significant changes in the digestibility of proteins. CSS addition and heat treatment did not significantly affect whey protein digestibility but impacted the digestibility of κ-casein. While addition of TSC and DSHP induced comparable κ-casein digestibility in bovine skim milk and milk blends, the addition of TSC and heat treatment of buffalo skim milk effected maximum κ-casein gastrointestinal digestibility. Overall, α-lactalbumin and κ-casein were the most resistant proteins against degradation by digestive enzymes. These results may be useful in deciding appropriate process intervention that could maximise gastrointestinal digestion of proteins in buffalo and bovine milk blends.
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spelling doaj-art-52afa9ece41e4b3fbe95e1532dcc301c2025-08-20T02:50:16ZengElsevierFood Chemistry Advances2772-753X2024-12-01510077910.1016/j.focha.2024.100779Influence of heat treatment and calcium sequestering salts on in vitro protein digestion in blends of skimmed buffalo and bovine milkCarolyn T. Mejares0Thom Huppertz1Jayani Chandrapala2School of Science, STEM College, RMIT University, Melbourne, VIC 3083, Australia; School of Technology, University of the Philippines Visayas, Miagao, Iloilo 5023 PhilippinesFrieslandCampina, Amersfoort, the Netherlands; Food Quality and Design Group, Wageningen University & Research, Wageningen, the NetherlandsSchool of Science, STEM College, RMIT University, Melbourne, VIC 3083, Australia; Corresponding author.This study investigated the impact of the addition of 5 mM trisodium citrate (TSC) or disodium hydrogen phosphate (DSHP) and heat treatment (85 or 95 °C for 5 min) on the in vitro gastrointestinal digestibility of proteins in blends (0:100, 25:75, 50:50, 75:25, 100:0) of skimmed buffalo and bovine milk. Digestibility of proteins decreased with increasing proportion of buffalo skim milk, irrespective of heat treatment and calcium sequestering salt (CSS) addition. Heat treatment alone did not induce significant changes in the digestibility of proteins. CSS addition and heat treatment did not significantly affect whey protein digestibility but impacted the digestibility of κ-casein. While addition of TSC and DSHP induced comparable κ-casein digestibility in bovine skim milk and milk blends, the addition of TSC and heat treatment of buffalo skim milk effected maximum κ-casein gastrointestinal digestibility. Overall, α-lactalbumin and κ-casein were the most resistant proteins against degradation by digestive enzymes. These results may be useful in deciding appropriate process intervention that could maximise gastrointestinal digestion of proteins in buffalo and bovine milk blends.http://www.sciencedirect.com/science/article/pii/S2772753X24001758Buffalo milkMilk mixtureHeat treatmentIn vitro digestionCalcium sequestering salt
spellingShingle Carolyn T. Mejares
Thom Huppertz
Jayani Chandrapala
Influence of heat treatment and calcium sequestering salts on in vitro protein digestion in blends of skimmed buffalo and bovine milk
Food Chemistry Advances
Buffalo milk
Milk mixture
Heat treatment
In vitro digestion
Calcium sequestering salt
title Influence of heat treatment and calcium sequestering salts on in vitro protein digestion in blends of skimmed buffalo and bovine milk
title_full Influence of heat treatment and calcium sequestering salts on in vitro protein digestion in blends of skimmed buffalo and bovine milk
title_fullStr Influence of heat treatment and calcium sequestering salts on in vitro protein digestion in blends of skimmed buffalo and bovine milk
title_full_unstemmed Influence of heat treatment and calcium sequestering salts on in vitro protein digestion in blends of skimmed buffalo and bovine milk
title_short Influence of heat treatment and calcium sequestering salts on in vitro protein digestion in blends of skimmed buffalo and bovine milk
title_sort influence of heat treatment and calcium sequestering salts on in vitro protein digestion in blends of skimmed buffalo and bovine milk
topic Buffalo milk
Milk mixture
Heat treatment
In vitro digestion
Calcium sequestering salt
url http://www.sciencedirect.com/science/article/pii/S2772753X24001758
work_keys_str_mv AT carolyntmejares influenceofheattreatmentandcalciumsequesteringsaltsoninvitroproteindigestioninblendsofskimmedbuffaloandbovinemilk
AT thomhuppertz influenceofheattreatmentandcalciumsequesteringsaltsoninvitroproteindigestioninblendsofskimmedbuffaloandbovinemilk
AT jayanichandrapala influenceofheattreatmentandcalciumsequesteringsaltsoninvitroproteindigestioninblendsofskimmedbuffaloandbovinemilk