마(Dioscorea batatas) 전분의 추출 및 물리화학적 특성에 대한전분추출용액의 영향 (Effect of starch extraction solutions on extraction and physicochemical property of Chinese yam (Dioscorea batatas) starch)

서지정보

· 발행기관 : 한국식품과학회
· 수록지 정보 : 한국식품과학회지 / 50권 / 2호 / 191 ~ 197페이지
· 저자명 : 이현정, 서동호, 김현석

초록

This study investigated the influence of starch extraction (ST-EX) solutions on the extraction yield and characteristics of Chinese yam (CY) starches from domestic Dioscorea batatas. Ascorbic acid (VitC), Na2S2O3, NaHCO3, and Na2CO3 were used as ST-EX solutions (0.4%, w/v). The extracted CY starches were examined for ST-EX yield, chemical composition, size distribution, X-ray diffraction, solubility, swelling power, gelatinization, and pasting viscosity. The highest ST-EX yield was obtained from NaHCO3, followed by VitC. Lower protein content, relative crystallinity, and gelatinization enthalpy were found in CY starches from alkaline ST-EX solutions (NaHCO3 and Na2CO3). Size distribution and gelatinization temperature did not generally differ for CY starches from the different ST-EX solutions. Pasting viscosities increased in the order from Na2CO3>Na2S2O3> NaHCO3> VitC ST-EX solutions. Thus, VitC may be most appropriate to extract CY starch from Dioscorea rhizomes, considering its ST-EX yield, total starch content, and variation in pasting viscosity.

영어초록

This study investigated the influence of starch extraction (ST-EX) solutions on the extraction yield and characteristics of Chinese yam (CY) starches from domestic Dioscorea batatas. Ascorbic acid (VitC), Na2S2O3, NaHCO3, and Na2CO3 were used as ST-EX solutions (0.4%, w/v). The extracted CY starches were examined for ST-EX yield, chemical composition, size distribution, X-ray diffraction, solubility, swelling power, gelatinization, and pasting viscosity. The highest ST-EX yield was obtained from NaHCO3, followed by VitC. Lower protein content, relative crystallinity, and gelatinization enthalpy were found in CY starches from alkaline ST-EX solutions (NaHCO3 and Na2CO3). Size distribution and gelatinization temperature did not generally differ for CY starches from the different ST-EX solutions. Pasting viscosities increased in the order from Na2CO3>Na2S2O3> NaHCO3> VitC ST-EX solutions. Thus, VitC may be most appropriate to extract CY starch from Dioscorea rhizomes, considering its ST-EX yield, total starch content, and variation in pasting viscosity.

참고자료

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