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- Title
Effect of ultrafine grinding and high pressure technology on functional properties of soybean by-products.
- Authors
Fang Wang; Sukmanov, Valerii; Jie Zeng
- Abstract
Introduction. The content of soluble dietary fiber (SDF) and the taste and quality of soybean by-products can be improved by combination of ultrafine grinding-high pressure technology. . Material and methods. Soybean by-products; superfine grinding KCW-701S; high static pressure processing device FPG5620YHL; ultrafine grinding-high pressure technology set pressure:0, 50, 100, 150, 200 and 300MPa; material-liquid ratio: 1:3, 1:5, 1:7, 1:9 and 1:11; time: 5, 10, 15, 20 and 25 min. Result and discussion. Ultrafine grinding has a significant impact on SDF of soybean by-products. As the frequency decreases, the SDF content gradually increased. When the frequency was 30 Hz, it reached the highest value of 27.11%, and it increased by 8.1% compared with control. When the frequency was less than 30 Hz, the SDF content drops sharply to 24.12%. Therefore, the ultrafine grinding frequency was the best at 30Hz, and SDF of soybean by-products was the highest. When the pressure at 150MPa, the material-liquid ratio was 1:7, at 10min, the content of SDF had reached a maximum of 28.76% in soybean by-products, which was increased by 12.76%, it compared with the control group. The water solubility, expansion, water and oil holding capacity of soybean by-products were lower, it compared with the control group. When the pressure at 150 MPa, water soluble content was minimum 11.24%. But with the rose in time, the minimum was 10.39% at 15 min. At 150 MPa for 10min, the expansion was 8.2mL/g, but when the processing time was 20 min, the expansibility was up to 8.8mL/g. The water and oil holding capacity of soybean by-products have similar trends. At 100 MPa, the pressure achieved the highest value, at 150 MPa, the water and oil holding properties was the smallest, but when the treatment time exceeds 10 min, the water and oil holding properties slightly increased. Conclusion. The ultrafine grinding frequency at 30 Hz, and SDF of soybean by-products was the highest value of 27.11%. When the pressure was 150M Pa, the material-liquid ratio was 1:7, at 10 min, the SDF of soybean by-products has reached maximum, and it was 28.76%.
- Subjects
HIGH pressure (Technology); WASTE products; STATIC pressure; SOYBEAN; DIETARY fiber; SOYBEAN farming
- Publication
Ukrainian Food Journal, 2020, Vol 9, Issue 1, p120
- ISSN
2304-974X
- Publication type
Article
- DOI
10.24263/2304-974X-2020-9-1-11