Alpha starch - Alpha starch

Japanese: αデンプン - あるふぁでんぷん
Alpha starch - Alpha starch

…When rice is cooked, the starch becomes alpha starch, which is easy to digest and tasty. Alpha starch is made by adding water to starch, heating it, and gelatinizing it. It has the unique feature that its crystalline structure cannot be seen when viewed with an X-ray.

From [Food]

…Raw starch does not dissolve in water, so it is not easily affected by digestive enzymes. When starch is added to water and heated, the micellar structure of the sugar chains (a chain of glucose molecules) that make up the amylose and amylopectin in starch is destroyed, and the starch swells and becomes α-starch. This phenomenon is called gelatinization. …

*Some of the terminology that mentions "alpha starch" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…米を炊いて飯にすると,デンプンは消化のよいおいしいαデンプンの形になる。αデンプンとは,デンプンに水を加えて加熱し糊化させたもので,X線でみるとその結晶構造が認められないという特徴がある。…

【食品】より

…生デンプンは水には溶けないので,消化酵素の作用は受けにくい。デンプンに水を加えて加熱すると,デンプンのアミロース,アミロペクチンを構成している糖鎖(ブドウ糖が鎖状に連なった構造)のミセル構造が壊れて,デンプンは膨潤し,α‐デンプンの状態になる。この現象を糊化(こか)という。…

※「αデンプン」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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