B. M\u1ed9t ph\u1ea7n ph\u1ed5i d\u00ednh m\u00e0u khi ph\u1ea7n \u0111\u00f3 kh\u00f4 \u0111i. Ch\u1ea5t k\u1ebft d\u00ednh (c\u00f3 th\u1ec3 l\u00e0 g\u1ed1c gelatin) c\u00f3 trong b\u1ec3 \u0111i\u1ec1u nhi\u1ec7t H\u00e0m l\u01b0\u1ee3ng protein trong ch\u1ea5t k\u1ebft d\u00ednh \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00f4 \u0111\u1eb7c khi n\u01b0\u1edbc bay h\u01a1i. Vi\u1ec7c tho\u00e1t n\u01b0\u1edbc \u0111\u00fang c\u00e1ch tr\u01b0\u1edbc khi s\u1ea5y kh\u00f4 c\u00f3 th\u1ec3 tr\u00e1nh \u0111\u01b0\u1ee3c v\u1ea5n \u0111\u1ec1.<\/figcaption><\/figure>\n <\/p>\n
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Tr\u00e1nh l\u00e2y nhi\u1ec5m ch\u00e9o<\/span><\/strong><\/p>\n\u00a0<\/i>B\u1ec1 m\u1eb7t n\u01b0\u1edbc lu\u00f4n \u0111\u01b0\u1ee3c t\u00e1ch ra gi\u1eefa c\u00e1c m\u1eabu \u0111\u1ec3 tr\u00e1nh l\u00e0m \u00f4 nhi\u1ec5m ph\u1ea7n n\u00e0y v\u1edbi t\u1ebf b\u00e0o t\u1eeb ph\u1ea7n kh\u00e1c.<\/p>\n
\u00a0<\/i>M\u1eb7t n\u01b0\u1edbc kh\u00f4ng b\u1ecb t\u00e1ch ra gi\u1eefa m\u1ed7i kh\u1ed1i. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn s\u1ef1 nhi\u1ec5m b\u1ea9n t\u1eeb m\u1eabu n\u00e0y sang m\u1eabu kh\u00e1c, c\u00f3 th\u1ec3 g\u00e2y nh\u1ea7m l\u1eabn v\u00e0 ch\u1ea9n \u0111o\u00e1n kh\u00f4ng ch\u00ednh x\u00e1c.<\/p>\n