C\u00f3 m\u1ed9t c\u00e2u th\u01a1 c\u1ed5 \u201cm\u00f9a xu\u00e2n mu\u00f4n m\u00e0u mu\u00f4n s\u1eafc\u201d. M\u1ed7i khi m\u00f9a xu\u00e2n v\u1ec1, m\u00e0u v\u00e0ng c\u1ee7a hoa t\u1ea7m xu\u00e2n, m\u00e0u h\u1ed3ng c\u1ee7a hoa anh \u0111\u00e0o, m\u00e0u ph\u1ea5n h\u1ed3ng c\u1ee7a hoa \u0111\u00e0o hay m\u00e0u t\u00edm c\u1ee7a hoa violet\u2026 l\u00e0m cho s\u1eafc xu\u00e2n c\u00e0ng th\u00eam t\u01b0\u01a1i vui, c\u00e0ng th\u00eam s\u1ed1ng \u0111\u1ed9ng h\u01a1n, r\u1ef1c r\u1ee1 h\u01a1n.<\/p>\n\n\n\n
N\u1ebfu b\u1ea1n quan s\u00e1t k\u1ef9 m\u1ed9t ch\u00fat, c\u00f3 th\u1ec3 th\u1ea5y s\u1eafc hoa ch\u1ee7 y\u1ebfu l\u00e0 s\u1ef1 bi\u1ebfn \u0111\u1ed5i gi\u1eefa c\u00e1c m\u00e0u h\u1ed3ng, t\u00edm, xanh lam; c\u0169ng c\u00f3 m\u1ed9t s\u1ed1 lo\u00e0i hoa l\u00e0 s\u1ef1 bi\u1ebfn \u0111\u1ed5i gi\u1eefa m\u00e0u v\u00e0ng, m\u00e0u da cam v\u00e0 m\u00e0u h\u1ed3ng.<\/p>\n\n\n\n
S\u1ef1 bi\u1ebfn \u0111\u1ed5i gi\u1eefa m\u00e0u v\u00e0ng, da cam, h\u1ed3ng l\u00e0 \u201ctr\u00f2 ch\u01a1i\u201d c\u1ee7a ch\u1ea5t carotin. Trong ch\u1ea5t carotin c\u00f3 r\u1ea5t nhi\u1ec1u m\u00e0u s\u1eafc, kho\u1ea3ng h\u01a1n 60 lo\u1ea1i m\u00e0u s\u1eafc kh\u00e1c nhau. C\u00f2n s\u1ef1 bi\u1ebfn \u0111\u1ed5i gi\u1eefa m\u00e0u \u0111\u1ecf, t\u00edm, lam l\u00e0 do trong t\u1ebf b\u00e0o c\u1ee7a hoa c\u00f3 ch\u1ee9a ch\u1ea5t qu\u1ef3. Qu\u1ef3 l\u00e0 m\u1ed9t lo\u1ea1i s\u1eafc t\u1ed1 h\u1eefu c\u01a1, n\u00f3 r\u1ea5t d\u1ec5 thay \u0111\u1ed5i, ch\u1ec9 c\u1ea7n nhi\u1ec7t \u0111\u1ed9 ho\u1eb7c \u0111\u1ed9 axit ki\u1ec1m thay \u0111\u1ed5i m\u1ed9t ch\u00fat l\u00e0 m\u00e0u c\u1ee7a n\u00f3 s\u1ebd mang m\u1ed9t chi\u1ebfc \u00e1o cho\u00e0ng m\u1edbi ngay.<\/p>\n\n\n\n
B\u1ea1n \u0111\u00e3 bi\u1ebft lo\u00e0i hoa khi\u00ean ng\u01b0u ch\u01b0a? Hoa c\u1ee7a n\u00f3 gi\u1ed1ng nh\u01b0 nh\u1eefng chi\u1ebfc loa, nhi\u1ec1u m\u00e0u s\u1eafc. Th\u1ef1c ra \u0111\u00f3 ho\u00e0n to\u00e0n l\u00e0 do \u201ctr\u00f2 \u1ea3o thu\u1eadt\u201d c\u1ee7a ch\u1ea5t qu\u1ef3 c\u00f3 trong c\u00e1nh hoa, n\u1ebfu b\u1ea1n ng\u1eaft m\u1ed9t b\u00f4ng hoa khi\u00ean ng\u01b0u m\u00e0u h\u1ed3ng xu\u1ed1ng ng\u00e2m trong n\u01b0\u1edbc x\u00e0 ph\u00f2ng, m\u00e0u h\u1ed3ng s\u1ebd \u0111\u1ed5i sang m\u00e0u lam. V\u00e0 tr\u00f2 \u1ea3o thu\u1eadt n\u00e0y c\u00f2n c\u00f3 th\u1ec3 thay \u0111\u1ed5i ng\u01b0\u1ee3c l\u1ea1i, n\u1ebfu b\u1ea1n ng\u00e2m m\u1ed9t b\u00f4ng m\u00e0u lam v\u00e0o trong dung d\u1ecbch axit clohydric th\u00ec n\u00f3 l\u1ea1i chuy\u1ec3n sang m\u00e0u h\u1ed3ng. H\u00f3a ra \u0111\u00e2y ch\u1ec9 l\u00e0 s\u1ef1 thay \u0111\u1ed5i \u0111\u1ed9 axit, ki\u1ec1m, d\u1eabn \u0111\u1ebfn s\u1ef1 thay \u0111\u1ed5i m\u00e0u ch\u1ea5t qu\u1ef3.<\/p>\n\n\n\n
Trong c\u01a1 th\u1ec3 th\u1ef1c v\u1eadt c\u00f3 nh\u1eefng th\u1ee9 c\u00f3 t\u00ednh axit, c\u0169ng c\u00f3 nh\u1eefng th\u1ee9 c\u00f3 t\u00ednh ki\u1ec1m. Kh\u00f4ng ch\u1ec9 c\u00f3 \u0111\u1ed9 ki\u1ec1m, \u0111\u1ed9 axit trong nh\u1eefng lo\u00e0i kh\u00e1c nhau s\u1ebd kh\u00e1c nhau m\u00e0 c\u1ea3 \u0111\u1ed9 axit, \u0111\u1ed9 ki\u1ec1m trong c\u00f9ng m\u1ed9t lo\u00e0i c\u0169ng s\u1ebd thay \u0111\u1ed5i do \u1ea3nh h\u01b0\u1edfng c\u1ee7a \u00e1nh s\u00e1ng, nhi\u1ec7t \u0111\u1ed9, \u0111\u1ed9 \u1ea9m. Nh\u01b0 v\u1eady, ch\u1ea5t qu\u1ef3 lu\u00f4n lu\u00f4n \u201cbi\u1ebfn h\u00f3a\u201d tr\u01b0\u1edbc m\u1eaft ch\u00fang ta t\u1ea1o ra tr\u0103m hoa \u0111ua n\u1edf, l\u00e0m cho cu\u1ed9c s\u1ed1ng ng\u00e0y c\u00e0ng t\u01b0\u01a1i \u0111\u1eb9p h\u01a1n.<\/p>\n\n\n\n
B\u1ea1n nh\u1ea5t \u0111\u1ecbnh s\u1ebd c\u1ea3m th\u1ea5y k\u00ec l\u1ea1: c\u00e2y hoa ph\u00f9 dung s\u00e1ng n\u1edf t\u1ed1i t\u00e0n, bu\u1ed5i s\u00e1ng n\u00f3 n\u1edf hoa m\u00e0u tr\u1eafng, tr\u01b0a d\u1ea7n chuy\u1ec3n sang m\u00e0u ph\u1ea5n h\u1ed3ng r\u1ed3i sang m\u00e0u \u0111\u1ecf. C\u00f2n c\u00e2y b\u00f4ng kh\u00f4ng nh\u1eefng thay \u0111\u1ed5i m\u00e0u hoa trong m\u1ed9t ng\u00e0y m\u00e0 ngay tr\u00ean c\u00f9ng m\u1ed9t c\u00e2y c\u00f3 th\u1ec3 c\u00f3 c\u00f9ng l\u00fac ra m\u1ea5y m\u00e0u hoa. \u0110\u00f3 \u0111\u1ec1u l\u00e0 tr\u00f2 \u201cxi\u1ebfc\u201d c\u1ee7a ch\u1ea5t qu\u1ef3 \u1edf trong hoa theo s\u1ef1 bi\u1ebfn \u0111\u1ed5i c\u1ee7a c\u01b0\u1eddng \u0111\u1ed9 chi\u1ebfu s\u00e1ng c\u1ee7a M\u1eb7t Tr\u1eddi, c\u1ee7a nhi\u1ec7t \u0111\u1ed9 v\u00e0 c\u1ee7a \u0111\u1ed9 \u1ea9m g\u00e2y n\u00ean.<\/p>\n","protected":false},"excerpt":{"rendered":"
C\u00f3 m\u1ed9t c\u00e2u th\u01a1 c\u1ed5 \u201cm\u00f9a xu\u00e2n mu\u00f4n m\u00e0u mu\u00f4n s\u1eafc\u201d. M\u1ed7i khi m\u00f9a xu\u00e2n v\u1ec1, m\u00e0u v\u00e0ng c\u1ee7a hoa t\u1ea7m xu\u00e2n, m\u00e0u h\u1ed3ng c\u1ee7a hoa anh \u0111\u00e0o, m\u00e0u ph\u1ea5n h\u1ed3ng c\u1ee7a hoa \u0111\u00e0o hay m\u00e0u t\u00edm c\u1ee7a hoa violet\u2026 l\u00e0m cho s\u1eafc xu\u00e2n c\u00e0ng th\u00eam t\u01b0\u01a1i vui, c\u00e0ng th\u00eam s\u1ed1ng \u0111\u1ed9ng h\u01a1n, r\u1ef1c r\u1ee1 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[15,19],"tags":[],"class_list":["post-9651","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-tu-nhien"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/9651","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=9651"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/9651\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=9651"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=9651"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=9651"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}