scholarly journals The use of soy protein isolate in meatballs and its effect on the quality and shelf life of the product

Author(s):  
Joko Hermanianto ◽  
Dhita Sari ◽  
Nugraha Edhi Suyatma

Beef meatballs are in great demand by the public because of their non- porous texture, juicy, and chewy characteristics, as well as their ability to be stable at cooking temperatures with a long shelf life. The use of Isolated Soy Protein (ISP) shapes the character of meatballs because of its functional properties, including good water holding capacity and emulsion stability formation in a mixture of processed meat products. This research aims to technically determine the multiple emulsion properties of ISP at doses of 0%, 2%, 4%, and 8% and obtain a meatball formulation with a long shelf life that suits the target consumer. The tests include the ISP emulsification, meatball peel formation, product stability, Arrhenius shelf life method, and the sensory evaluation of the hedonic test. Subsequently, data were processed in a completely randomized 1x5 and a 4x3 factorial design using SPSS. The emulsification properties of ISP were determined by producing OE (Oil Emulsion) and PG (Purine Gel). Furthermore, ISP was discovered to change the percentage of meat consumed by approximately 2% as the characteristics of meatball products desired by consumers were achieved. The best formulation of meatballs was achieved with 2% dry ISP in the first mixing and was conducted at a boiling point of 65°C

2019 ◽  
Vol 9 (6) ◽  
pp. 1076 ◽  
Author(s):  
Li Zheng ◽  
Fei Teng ◽  
Na Wang ◽  
Xue-Na Zhang ◽  
Joe Regenstein ◽  
...  

Spray drying is used in the food industry to convert liquids into dry powders. The effect of the addition of salt ions before spray drying to improve the heat- and cold-induced gel properties of soy protein isolate (SPI) was investigated. Certain concentrations of Na+ (0.005–0.01 M), Mg2+ (0.005 M), and Ca2+ (0.005 M) significantly increased the hardness, springiness, cohesiveness, chewiness, gumminess, resilience, and water holding capacity of the heat- and cold-induced gels. This effect arises predominantly due to the functional groups buried in the protein matrix that are partially exposed to improve the interactions between the protein molecules. The main interactions that promoted gel formation and maintained the three-dimensional structure of the heat- and cold-induced gels were hydrophobic and disulfide interactions. Analysis using scanning electron microscopy showed that the heat- and cold-induced gels were uniform, had smooth surfaces, and had smaller pores with added Na+ (0.01 M), Mg2+ (0.005 M), and Ca2+ (0.005 M). The results indicate that we might broaden the applications of SPI by simulating the industrial gel manufacturing process for products such as fish balls and chiba tofu. Overall, adding salt ions before spray drying could offer great potential for the development of SPI with enhanced functionality suitable for comminuted meat products.


2021 ◽  
Vol 2 (3) ◽  
pp. 4203-4213
Author(s):  
Brenda Olivera Bernardini ◽  
Rodrigo González González

Soy proteins are used for their emulsifying, foaming, gelling properties, among others. These characteristics can be modified depending on the conditions to which the product is located. These modifications can now be risky for companies that evaluate product shelf life. Non-dairy products, such as soy-based beverages are the model for characterizing protein gelling kinetics by subjecting them to four different temperature and concentration changes, checking the viscosity of the product after a while.  This work evaluated a soy-based drink by adding soy protein isolate at concentrations of 3% 4%, 5% and 6% and then taking it to pasteurization, which would help us make a safe drink. Once pasteurized, tests were placed at the temperature of 45 ºC, 60 ºC, 65 ºC, and 80 ºC respectively for 48 hours to see a change in the properties in the beverages and calculate the gelling curve of each concentration with each temperature. To see the change generated before and after the temperature, viscosity measures were taken, which will help us to have a clearer change from what happens to the isolated soy protein. Curves and kinetic parameters were obtained by making significant differences mainly at a higher temperature and at high concentration, I have even suspended particles forming a gel type in the drink.


2021 ◽  
pp. 68-70
Author(s):  
Полина Владимировна Сергеева ◽  
Юлия Владимировна Николаева ◽  
Вероника Владимировна Тарасова

На данный момент наблюдается повышение интереса потребителей к вегетарианской продукции. Основными причинами отказа от мясной продукции могут быть этические и экологические соображения, религиозные взгляды, состояние здоровья. В связи с ростом интереса потребителей к вегетарианской продукции создание колбасы на основе растительного сырья является актуальным и значимым. В данной работе приведены этапы исследования на возможность использования изолята и концентрата соевого белка как аналога для замены мясного сырья в колбасе, имеющего высокую биологическую ценность и аналогичные реологические качества. Рассмотрено содержание общего белка и аминокислот в соевых высокобелковых продуктах, благодаря чему удалось выявить, что оба образца в своем составе имеют большое содержание белка, а также всех аминокислот, включая незаменимые, содержащиеся в мясе. Опытным путем были изучены функциональные качества изолята и концентрата соевого белка, такие как гелеобразующая способность, гидратация, растворимость, вязкость водных растворов в различных концентрациях и при различной температуре. Благодаря проведенным исследованиям удалось выявить, что изолят соевого белка более предпочтителен для разработки вегетарианской колбасы. Изолят соевого белка превосходит соевый концентрат по содержанию общего белка, что повышает его биологическую ценность. Соевый изолят проявил большую способность к гелеобразованию, гидратации, а также к образованию вязких растворов, что способствует формированию лучших реологических качеств, облегчит технологический процесс при приготовлении, а также обеспечит меньше потерь при термической обработке и хранении. Помимо этого, было выявлено, что изолят соевого белка обладает более нейтральным вкусом и запахом, что облегчит формирование желаемых органолептических качеств у вегетарианской колбасы. At the moment, there is an increase in consumer interest in vegetarian products. Ethical and environmental considerations, religious beliefs, and health conditions can be the main reasons for avoiding meat products. In connection with the growing interest of consumers in vegetarian products, the creation of sausages based on vegetable raw materials is relevant and significant. In this work, studies have been carried out on the possibility of using soy protein isolate and concentrate as an analogue for replacing raw meat in sausage, which has a high biological value and similar rheological qualities. The content of total protein and amino acids in high-protein soy products was considered, due to which it was possible to reveal that both samples in their composition have a high content of protein, as well as all amino acids, including essential ones, contained in meat. The functional qualities of soy protein isolate and concentrate, such as gelling ability, hydration, solubility, viscosity of aqueous solutions in various concentrations and at different temperatures, were experimentally studied. Studies have shown that soy protein isolate is more preferable for the development of vegetarian sausages. Soy Protein Isolate is superior to soy concentrate in total protein content, which increases its biological value. Soy isolate has shown a great ability to gel formation, hydration, and the formation of viscous solutions, which contributes to the formation of better rheological properties, facilitates the technological process during preparation, and also provides less losses during heat treatment and storage. In addition, soy protein isolate has been found to be more neutral in taste and odor, which will facilitate the development of desirable organoleptic qualities in vegetarian sausage.


2021 ◽  
Author(s):  
Slavisa Stajic ◽  
◽  
Dusan Zivkovic

Emulsified sausages (e.g. frankfurters, mortadella) are well-known and widely consumed meat products. The aim of this experiment was to examine the impact of the substitution of various proportions of fatty tissue (20%, 60% and 100%) with emulsions (with soy protein isolate) of grapeseed and pumpkin seed oil on the chemical composition and sensory characteristics of frankfurters. We determined that the higher share of plant oils in the mixture led to a progressive increase in the moisture and protein contents, whereas the fat content decreased. The type and amount of oil in the batches had a significant impact on sensory evaluation results, with pumpkin seed oil having a more pronounced impact – frankfurters where 100% of the fatty tissue was substituted with pumpkin seed oil emulsion were unacceptable for consumers.


Author(s):  
Yuanyuan Liu ◽  
Huajiang Zhang ◽  
Yujie Chi ◽  
Yongqing Wu ◽  
Wenhui Cao ◽  
...  

Recently, increasing interest to improve food safety and extend their shelf-life has led to the development and testing of the edible films with antimicrobial properties. The soy protein isolate (SPI) antimicrobial films were made with Nisin (N), sodium lactate (NaL), EDTA (E) and their optical combination (C). The C film showed a significant (p<0.05) antimicrobial effect on three food pathogens, E.coli, Salmonella and Bacillus cereus, which inhibitory zone is 32mm, 33.33mm and 32.33mm, respectively. The addition of N and NaL to SPI film reduced its mechanical properties, that is, the tensile strength (TS) was reduced from 10.8716MPa to 8.1405MPa (N1) and 3.2715MPa (NaL3) and the elongation at break (E) was increased from 3.03% to 4.73% (N3, N4) and 11.21 % (NaL4). While the addition of EDTA and combination increased TS from 10.8716MPa to 17.0600MPa (E4) and reduced E from 3.03% to 2.36% (E1). The water vapor permeability (WVP), oxygen permeability (OP) and total color difference (ΔE) of films had changed with the addition of antimicrobial agents. The FTIR analysis showed no specific interaction between active groups of Nisin with functional group of control film. However, the intensity of peaks in the spectrum of NaL and EDTA increased, indicating interactions between NaL, EDTA and SPI.The application experiments showed the total bacterial count and TVB-N value of sample wrapped by ordinary wraps, SPI film and SPI antimicrobial film were incresed as storage time extended. On the 6th day, the sample wrapped by SPI film has been metamorphism, which total bacterial count and TVB-N value were 8.922 lg cfu/g and 21.340 mg/100g. On the 9th day, the sample wrapped by ordinary wraps has been metamorphism, which total bacterial count and TVB-N value were 7.866 lg cfu/g and 21.150 mg/100g. And the sample wrapped by SPI antimicrobial film had been metamorphism on the 12th day, indicating that the SPI antimicrobial film had a bacteriostatic preservation effect on the meat antibacterial preservation and extend the shelf life to 3-6 days compared with SPI film and ordinary wraps. The SPI antimicrobial film broadens the application of SPI film.


2020 ◽  
Vol 17 (100) ◽  
pp. 29-41
Author(s):  
Fereshteh Hoseiniyan ◽  
Saber Amiri ◽  
Mahmoud Rezazadeh Bari ◽  
Laya Rezazad Bari ◽  
Sona Dodangeh ◽  
...  

2017 ◽  
Vol 41 (3) ◽  
pp. 319
Author(s):  
Dwi Wulandari ◽  
Yuny Erwanto ◽  
Yudi Pranoto ◽  
Rusman Rusman

This study examined the characteristics of the edible film mixture gelatin bovine split hide and soy protein isolate, cross-linked using transglutaminase enzyme with addition level of glycerol as a plasticizer.The material used gelatin  combination (Gelatin bovine split hide: soy proteinisolate = 90: 10 with 30 Utransglutaminase enzyme levels ), and glycerol. Data were analyzed  using completely randomized design each treatment was replicated thrice of glycerol as a treatment level ( 10%, 20% dan 30%). The results showed that the glycerol level significantly affected the thickness, elongation, solubility, degree of cross-linking and WVTR, but not the tensile strength.The addition of glycerol causing the film becomes more elastic and  the surface is more homogeneous and compact. Increasing the level to 30% glycerol affects the mechanical properties of an edible film.


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