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Physico-chemical pr...
Physico-chemical properties of pea fibre and pea protein blends and the implications for in vitro batch fermentation using human inoculum
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- Karlsson, Jakob, 1997 (författare)
- Applied Chemistry, Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg, Sweden,Chalmers tekniska högskola,Chalmers University of Technology
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- Lopez-Sanchez, Patricia, 1977 (författare)
- Food Technology, Department of Analytical Chemistry, Nutrition and Food Science, University of Santiago de Compostela, Facultad de Ciencias, Campus Terra, Spain,Universidade de Santiagode Compostela
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- Marques, Tatiana Milena, 1980- (författare)
- Örebro universitet,Institutionen för medicinska vetenskaper,Örebro University, Sweden
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- Hyötyläinen, Tuulia, 1971- (författare)
- Örebro universitet,Institutionen för naturvetenskap och teknik,Örebro University, Sweden
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- Castro Alves, Victor, 1986- (författare)
- Örebro universitet,Institutionen för naturvetenskap och teknik,Örebro University, Sweden
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- Krona, Annika (författare)
- RISE,Jordbruk och livsmedel,RISE Research Institutes of Sweden, Agriculture and Food, Gothenburg, Sweden
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- Ström, Anna, 1976 (författare)
- Applied Chemistry, Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg, Sweden,Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- Elsevier B.V. 2024
- 2024
- Engelska.
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Ingår i: Food Hydrocolloids. - : Elsevier B.V.. - 0268-005X .- 1873-7137. ; 150
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The incorporation of fibre into pea protein matrices influences their microstructure, yet our understanding of their gut fermentability remains unexplored. In this study, dietary fibres and protein from yellow pea were investigated for their physico-chemical properties and impact on in vitro colonic fermentation using human inoculum. Pea fibre and pea protein blends were studied at different pH and after thermal treatment at 95 °C for 30 min with oscillatory rheology, static light scattering and confocal laser scanning microscopy. The effect on in vitro colonic fermentation was evaluated measuring gas production, ammonia, and short chain fatty acid (SCFA) production. Rheology indicated that during thermal treatment a firmer gel is formed close to the protein isoelectric point with a structure characterised by aggregation, but less particle swelling compared to other pH. Addition of fibre led to higher storage modulus (G′), with the fibre dominating the rheological properties. Fermentation of samples containing protein led to higher levels of ammonia and SCFA compared to only fibres. Blends produced higher amounts of valerate, i-valerate and caproate, and lower amounts of ammonia. Reduced fermentation of proteins in the presence of fibres was also reflected in a more intact microstructure of the protein particles in the digesta. Although thermal treatment of blends caused particle swelling and induced gelation, only small differences could be discerned in the in vitro colonic fermentation outcomes. Our results highlight that potentially harmful fermentation products from protein, such as ammonia, were reduced in the presence of pea hull fibre.
Ämnesord
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Livsmedelsvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Food Science (hsv//eng)
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Annan teknik -- Livsmedelsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Other Engineering and Technologies -- Food Engineering (hsv//eng)
Nyckelord
- In vitro human colonic fermentation
- Microstructure
- Pea hull fibre
- Pea protein
- Rheology
- Yellow pea
- Ammonia
- Chemical properties
- Elasticity
- Fatty acids
- Fermentation
- Fibers
- Gelation
- Heat treatment
- Light scattering
- Proteins
- Batch fermentation
- Fiber protein
- In-vitro
- Inocula
- Pea hull fiber
- Pea proteins
- Physicochemical property
- Shorter chains
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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