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논문 기본 정보

자료유형
학술저널
저자정보
황영 (농촌진흥청 국립농업과학원 농식품자원부) 손영란 (농촌진흥청) 김하윤 (농촌진흥청농업과학기술원) 이정현 (충북대학교) 이형운 (바이오에너지작물연구소) 김경미 (농촌진흥청 국립농업과학원) 장현욱 (농촌진흥청 국립농업과학원) 조용식 (농촌진흥청 국립농업과학원 농식품자원부)
저널정보
한국산업식품공학회 산업식품공학 산업식품공학 제24권 제4호
발행연도
2020.1
수록면
366 - 375 (10page)

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A total of 87 kinds of dried sweet potato products from Korea, China, and Japan were collected to compare dried sweet potatoes' quality characteristics for preparing CODEX. The characteristics of Aw, moisture, and reliable soluble content, color, and hardness were analyzed using Principal Component Analysis. The moisture content varied from country to country in order of Korea (21%), China (20%), and Japan (25%). In terms of color, Chinese products were dark and red compare to Korean and Japanese. Chinese products had a wide distribution of quality characteristics in common, so the product quality was not uniform. As a result of the PCA analysis, 67.2% of the total variance was explained. The first component evaluated the degree of the drying progress and the second component evaluated the appearance of the product, how it was bright and yellow. Based on the first component, Japanese, Korean and Chinese products were placed from the left, so the drying degree varied from country to country. Japanese products were the softest, Chinese products were hard, and Korean products were moderately hard. In conclusion, the moisture and reliable soluble content, color, and hardness of the dried sweet potato are essential quality factors, and they are expected to help identify the primary quality elements of sweet potato in neighboring countries.

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