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

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Type
Academic journal
Author
Hyunjeong Lee (경기대학교) Dong-Ho Seo (한국식품연구원) Hyun-Seok Kim (경기대학교)
Journal
Korean Society of Food Science and Technology Korean journal of food science and technology Vol.50 No.2 KCI Accredited Journals SCOPUS
Published
2018.4
Pages
191 - 197 (7page)

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Effect of starch extraction solutions on extraction and physicochemical property of Chinese yam (Dioscorea batatas) starch
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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.

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UCI(KEPA) : I410-ECN-0101-2018-594-002059205