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Food Technology

88 Citations2018
Sanyogita Sharma, Neetu Shorgar
Sonochemistry

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Abstract

Article history: Received 09.11.2018 Received in revised form 23.11.2018 Accepted 10.12.2018 Corresponding author: O. Kochubei-Lytvynenko E-mail: okolit@email.ua ABSTRACT__________________________________________ For formation of appropriate structure of buttery pastes, which are characterized by high moisture content and pro­ vision of their stability during storage, search for effective natural functional and technological components is relevant. Proteins are among them, they would not only perform tech­ nological functions, but also serve as additional enriching component. Pea protein isolate holds a specific place among other vegetable proteins, as it has sufficiently balanced amino acid composition; almost completely deprived of taste and smell, common to legumes; does not contain antinutrients; has high water binding capacity and emulsifying characteristics; is not included to a group of products, that may cause allergy. The digestion rate of the isolate is approximately 98%. Isolate should be previously mixed with skimmed milk, water rational value was determined as 1 :8 , which allows to provide protein hydration and deployment of its space structure. Practicability of pea protein isolate hydration during 24 hours at a temperature (6±2)°C was proved; that would allow to obtain a homogeneous systemwith a higher indicator of stress gradient, rather than without holding. Upon the indicator of limit stress through variable strain rate of model samples, the technological parameters of pea pro­ tein isolate processing were determined: temperature (82±2)°C, process duration — 10...15 minutes with consequent coo­ ling to (20±2)°C. It was determined, that jellies based on pea protein isolate are flexible systems and have enough firm­ ness and thixotropic properties. It was suggested to produce buttery pastes through mixing hydrated pea protein isolate and a fatty base with consequent mechanical processing to obtain homogeneous mass. Possibility of appending hydra­ ted pea protein isolate into a fatty base in amount under 2.5% without change in organoleptic indicators was establi­ shed. The necessity of complex stabilization systems crea­ tion through production of buttery pastes with pea protein isolate was proved.