Влияние пластификаторов на качественные показатели пленкообразующих покрытий для защиты охлажденного мяса

Autor: Kyshenia, Andrii, Vinnikova, Lydmila, Kotlyar, Evgenii, Volovik, Tat’yana, Garbazhiy, Kateryna
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Eastern-European Journal of Enterprise Technologies; Том 2, № 11 (92) (2018): Technology and Equipment of Food Production; 17-22
Восточно-Европейский журнал передовых технологий; Том 2, № 11 (92) (2018): Технологии и оборудование пищевых производств; 17-22
Східно-Європейський журнал передових технологій; Том 2, № 11 (92) (2018): Технології та обладнання харчових виробництв; 17-22
ISSN: 1729-3774
1729-4061
Popis: The result of theoretical research into protection and prolonging the duration of meat and meat products storage has demonstrated that one of the promising directions is the application of protective coatings based on natural biopolymers. We used hydrocolloids as basic components of film-forming protective coatings. The study into mechanical and rheological properties of protective coatings was conducted; a comparative characteristic of these properties, which depend on the added plasticizer, is given.Film-forming coatings must possess high indicators of strength, elasticity, transparency, barrier properties, capability to sorb gases, water vapor. The film is to prevent undesirable effects for meat, to improve shelf life of the product without compromising quality indicators. Adding plasticizers to the composition of film-forming coatings will make it possible to control quality indicators of coatings.We have analyzed and theoretically substantiated the character and mechanisms of interaction between components of a film-forming coating and plasticizers.The viscosity of the film-forming coating without adding a plasticizer has the largest value compared to other solutions.The addition of plasticizers led to an increase in the elasticity of the film; we, however, observed a slight increase in strength.Film-forming coatings with the addition of a plasticizer had a higher yield limit and thus they were stronger than the integrated film-forming coatings without the addition of a plasticizer. On the other hand, the values of deformation of the film-forming coatings without the addition of a plasticizer were higher than those of the integrated film-forming coatings with the addition of a plasticizer, so they were more elastic.Studying the physical properties of the developed film-forming coatings based on hydrocolloids revealed that coatings with a plasticizer possess a larger vapor permeability.We have analyzed and theoretically substantiated the character and mechanisms of interaction between components of a film-forming coating and plasticizers.Based on results obtained in the course of experiments, it was established that the best mechanical, rheological, and physical indicators are demonstrated by the film-forming coating based on sodium alginate, carboxymethyl cellulose, and glycerin.
Охарактеризовано харчові плівки на основі полісахаридів. Досліджено наступні характеристики даних плівок: паропроникність, механічну міцність на розрив та прокол, вязкість плівкоутворюючого розчину. З цією метою в якості плівкоутворюючого матеріалу було застосовано ефір целюлози, карбоксиметилцелюлоза. Відповідно в якості розчинника використовувались дистильована вода, а в якості пластифікаторів – гліцерин, сорбіт та пропіленгліколь
Охарактеризованы пищевые пленки на основе полисахаридов. Исследованы следующие характеристики этих пленок: паропроницаемость, механическая прочность на разрыв и прокол, вязкость пленкообразующего раствора. С этой целью в качестве пленкообразующего материала был применен эфир целлюлозы, карбоксиметилцеллюлоза. Соответственно в качестве растворитиля использовались дистиллированная вода, а в качестве пластификаторов глицерин, сорбит и пропиленгликоль
Databáze: OpenAIRE
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