주요 시판 연두부의 품질 특성 평가 = Studies on Quality Characteristics of Commercial Silken Tofu Products

다국어 초록 (Multilingual Abstract)

The purpose of this study was to compare the quality characteristics of silken tofu products from the commercial market in Korea. Seven types of commercial silken tofu were sampled and their physicochemical properties, including soluble solid contents, salinity, pH, total acidity, moisture contents (total solid contents), crude protein and fat contents were evaluated. The TPA results suggest that the texture of silken tofu was very different from one another according to the type of and the amount of coagulant. The commercial silken tofu showed a range of pH 5.53~6.48, total acidity of 0.12~0.32%, soluble solid contents of 2.62~5.07 °Brix, salinity of 2.28~4.30%, and moisture contents of 87.10~92.24%, respectively. In terms of the coagulant of tofu, besides the GDL (glucono-δ- lactone), other coagulants such as MgCl₂ for making 'silken tofu' in the Korean tofu market. The quality characteristics differed depending on the constituents of sample and the coagulants of tofu used. These results are expected to be useful in identifying new trends in the domestic silken tofu industry.

참고문헌 (Reference)

1 최구희, "홍삼 추출물을 첨가한 연두부의 저장 중 품질 및 항산화 특성" 한국식품영양과학회 39 (39): 414-420, 2010

2 황인국, "청양고추 착즙액을 첨가한 두부의 품질 특성" 한국식품영양과학회 40 (40): 999-1005, 2011

3 박어진, "응고제에 따른 오징어 먹물 두부의 품질 특성" 한국식생활문화학회 21 (21): 653-660, 2006

4 박금순, "응고제에 따른 강황 두부의 품질 특성" 동아시아식생활학회 17 (17): 547-553, 2007

5 최선영, "오미자 추출물을 첨가한 두부의 품질특성" 한국식품영양학회 21 (21): 43-50, 2008

6 송재형, "백년초 열매를 이용한 두부의 품질 특성 연구" 한국식품영양학회 24 (24): 12-16, 2011

7 오만진, "미세 전지 대두분말과 단백분해효소를 이용하여 제조한 연두부의 특성" 한국식품저장유통학회 10 (10): 192-199, 2003

8 Hou HJ, "Yield and textural properties of tofu as affected by the changes of phytate content during soybean storage" 68 : 1185-1191, 2003

9 Xu B, "Total phenolics, phenolic acids, isoflavones, and anthocyanins and antioxidant properties of yellow and black soybeans as affected by thermal processing" 56 : 7165-7175, 2008

10 Shurtleff W, "Tofu and Soymilk Production: The Book of Tofu (Ⅱ)" Soyfoods Center, Lafayette 115-, 1996

11 Lee SM, "Texture characteristics of soybean curds prepared with different coagulants and compositions of soybean-curd whey" 13 : 78-85, 1997

12 Lee HJ, "Textural characteristics and microstructure of soybean curds prepared with different coagulants" 10 : 284-290, 1994

13 Murekatete N, "Soft tofutype gels : Relationship between volatile compounds and sensory characteristics as affected by coagulants and raw materials" 11 : 307-321, 2015

14 Choi HR, "Screening of antimicrobial and antioxidative herb" 15 : 123-131, 2003

15 Kim JY, "Quality attributes of whole soybean flour tofu affected by coagulant and theirs concentration" 32 : 402-409, 2000

16 Shih MC, "Process optimization for soft tofu" 62 : 833-837, 1997

17 AOAC, "Official Methods of Analysis of AOAC International. 19th ed"

18 Ministry of Food and Drug Safety [MFDS], "Korean food standards codex"

19 Ministry of Food and Drug Safety [MFDS], "Korean Food Standards Codex"

20 Murekatete N, "Gelation behavior and rheological properties of saltor acid-induced soy proteins soft tofu-type gels" 45 : 62-73, 2014

21 Yang A, "Effects of soybean protein composition and processing conditions on silken tofu properties" 93 : 3065-3071, 2013

22 Tseng YC, "Effect of inulin on the rheological properties of silken tofu coagulated with glucono-δ-lactone" 90 : 511-516, 2009

23 Monma M, "Carotenoid components in soybean seeds varying with seed color and maturation stage" 58 : 926-930, 1994

24 Korea Agro-Fisheries & Food Trade Corporation Food Information Statistics System [aTFIS], "2019 Food information statistics system"

25 National Agricultural Products Quality Management Service [NAQS], "2016 Traditional food quality certification system"