Science & Environment
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But agar’s superior qualities come with complex chemistry. “To speak of agar as a single substance of certain (if known) chemical structure is probably a mistake,” wrote phycologist Harold Humm in a 1947 article. According to the Food and Agriculture Organization of the United Nations, agar is merely recognized as “a hydrophilic colloid extracted from certain seaweeds of the Rhodophyceae class.” In terms of its actual composition, agar is mostly a combination of two polysaccharides, agaropectin and agarose, which themselves are complex and poorly-characterized polysaccharides made mostly (but not exclusively) from the simple sugar galactose.8
Narendra Modi’s cabinet has approved a proposal to change the southern coastal state’s name from Kerala to Keralam. The move will bring the official English name into line with how it is pronounced in Malayalam, the primary language spoken by the state’s estimated population of 35 million.,推荐阅读safew官方版本下载获取更多信息