Effect of Starch Pasting Temperature on Remaining Total Ascorbic Acid Content in Steamed Sweet Potatoes
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- Nakamura Yoshiyuki
- NARO Institute of Crop Science
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- Masuda Ryouichi
- NARO Institute of Crop Science
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- Kuranouchi Toshikazu
- NARO Institute of Crop Science
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- Katayama Kenji
- NARO Institute of Crop Science
Bibliographic Information
- Other Title
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- 蒸したサツマイモ塊根の総アスコルビン酸残存率に及ぼすデンプン糊化温度の影響
- ムシタ サツマイモ カイコン ノ ソウ アスコルビンサン ザンソンリツ ニ オヨボス デンプンノリカ オンド ノ エイキョウ
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Description
<p>The ascorbic acid content of raw and steamed storage roots of 3 sweet potato cultivars with different starch pasting temperatures was measured. The cultivars were “Beniazuma”, “Hoshikirari” and “Quick Sweet”, and their pasting temperatures measured by RVA were approximately 75°C, 65°C and 55°C, respectively. The total ascorbic acid contents per fresh weight of raw roots of “Beniazuma”, “Hoshikirari” and “Quick Sweet” were 275.88±38.93μg/g, 244.70±50.48μg/g and 218.26±50.20μg/g, respectively. After steaming, these values changed to 154.27±31.94μg/g, 170.20±26.20μg/g and 175.18±44.38 μg/g. Therefore, about 57%, 71% and 80% of the ascorbic acid contents in raw roots of “Beniazuma”, “Hoshikirari” and “Quick Sweet” were remained after steaming, respectively. The steaming process resulted in maltose generation at ca. 50°C for “Quick Sweet”, ca. 60°C for “Hoshikirari” and ca. 80°C for “Beniazuma”, according to their starch pasting temperatures. The sweet potato cultivar “Okikogane” in which maltose is not generated upon heating due to the lack of beta-amylase activity remained less than 50% of total ascorbic acid presented in raw roots after steaming. These results indicated that sweet potato cultivars with low starch pasting temperatures retained a larger percentage of total ascorbic acid content presented in their raw roots after steaming due to their early generation of maltose.</p>
Journal
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- Nippon Shokuhin Kagaku Kogaku Kaishi
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Nippon Shokuhin Kagaku Kogaku Kaishi 63 (10), 433-438, 2016
Japanese Society for Food Science and Technology
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Keywords
Details 詳細情報について
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- CRID
- 1390001206409897984
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- NII Article ID
- 130005170575
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- NII Book ID
- AN10467499
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- ISSN
- 18816681
- 1341027X
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- NDL BIB ID
- 027652321
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed