Nhi\u1ec1u ng\u01b0\u1eddi cho r\u1eb1ng, n\u01b0\u1edbc cam chua \u1eaft ph\u1ea3i l\u00e0 th\u1ef1c ph\u1ea9m c\u00f3 t\u00ednh axit. Th\u1ef1c ra theo ho\u00e1 h\u1ecdc th\u1ef1c ph\u1ea9m, ng\u01b0\u1eddi ta g\u1ecdi th\u1ef1c ph\u1ea9m c\u00f3 t\u00ednh axit hay ki\u1ec1m kh\u00f4ng ph\u1ea3i \u0111\u1ec3 ch\u1ec9 th\u1ef1c ph\u1ea9m b\u1ea3n th\u00e2n c\u00f3 t\u00ednh axit hay ki\u1ec1m m\u00e0 l\u00e0 ch\u1ec9 vi\u1ec7c, sau khi \u0103n th\u1ef1c ph\u1ea9m v\u00e0o ng\u01b0\u1eddi v\u00e0 sau khi ti\u00eau ho\u00e1, ch\u00fang l\u00e0m cho c\u01a1 th\u1ec3 c\u00f3 khuynh h\u01b0\u1edbng th\u1ec3 hi\u1ec7n t\u00ednh ki\u1ec1m hay t\u00ednh axit. V\u00ed nh\u01b0 g\u1ea1o, b\u1ed9t m\u00ec, th\u1ecbt l\u1ee3n, tr\u1ee9ng, rau sau khi \u0103n v\u00e0 chuy\u1ec3n ho\u00e1 c\u00f3 khuynh h\u01b0\u1edbng l\u00e0m c\u01a1 th\u1ec3 th\u1ec3 hi\u1ec7n t\u00ednh axit n\u00ean ch\u00fang l\u00e0 nh\u1eefng th\u1ef1c ph\u1ea9m c\u00f3 t\u00ednh axit. C\u00f2n nh\u01b0 \u0111\u1eadu t\u01b0\u01a1ng, c\u00e0 chua, cam, s\u1eefa b\u00f2 v\u00e0 \u0111\u01b0\u1eddng\u2026 l\u00e0m cho c\u01a1 th\u1ec3 ng\u01b0\u1eddi c\u00f3 khuynh h\u01b0\u1edbng th\u1ec3 hi\u1ec7n t\u00ednh ki\u1ec1m, v\u00ec v\u1eady \u0111\u00f3 l\u00e0 lo\u1ea1i th\u1ef1c ph\u1ea9m c\u00f3 t\u00ednh ki\u1ec1m.<\/p>\n\n\n\n
Ch\u1eb3ng l\u1ebd th\u1ef1c ph\u1ea9m l\u1ea1i c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh ki\u1ec1m, t\u00ednh axit c\u1ee7a c\u01a1 th\u1ec3 sao? Trong c\u00e1c lo\u1ea1i th\u1ef1c ph\u1ea9m lo\u1ea1i \u0111\u01b0\u1eddng, ch\u1ea5t b\u00e9o v\u00e0 c\u00e1c ch\u1ea5t protein, sau khi \u0103n v\u00e0o c\u01a1 th\u1ec3, qua ti\u00eau ho\u00e1 \u0111\u1ea1i b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c h\u1ea5p th\u1ee5. Sau qu\u00e1 tr\u00ecnh ti\u00eau ho\u00e1 sinh ra kh\u00ed cacbon \u0111ioxit, amoniac, ure\u2026 b\u1ecb b\u00e0i ti\u1ebft ra ngo\u00e0i c\u01a1 th\u1ec3. C\u00f2n th\u1ef1c ph\u1ea9m thu\u1ed9c lo\u1ea1i kho\u00e1ng ch\u1ea5t \u0111\u01b0\u1ee3c l\u01b0u gi\u1eef l\u00e2u h\u01a1n trong c\u01a1 th\u1ec3, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh axit hay ki\u1ec1m c\u1ee7a c\u01a1 th\u1ec3. C\u00e1c kho\u00e1ng v\u1eadt n\u00e0y l\u00e0 ph\u1ea7n b\u00e3, trong \u0111\u00f3 c\u00f3 nguy\u00ean t\u1ed1 t\u1ea1o n\u00ean t\u00ednh axit l\u00e0 clo, l\u01b0u hu\u1ef3nh, i\u00f4t\u2026, c\u00f2n t\u1ea1o n\u00ean t\u00ednh ki\u1ec1m l\u00e0 c\u00e1c nguy\u00ean t\u1ed1 natri, kali, canxi, magie, k\u1ebdm, s\u1eaft\u2026 \u0110\u1ee9ng v\u1ec1 g\u00f3c \u0111\u1ed9 ho\u00e1 h\u1ecdc, th\u1ef1c ph\u1ea9m l\u00e0 c\u00f3 t\u00ednh ki\u1ec1m hay axit \u0111\u01b0\u1ee3c ph\u00e2n bi\u1ec7t theo ph\u1ea7n b\u00e3 khi ho\u00e0 tan trong axit cho ph\u1ea3n \u1ee9ng axit hay ki\u1ec1m. D\u1ef1a v\u00e0o \u0111\u00f3 ng\u01b0\u1eddi ta \u0111o \u0111\u1ed9 axit hay ki\u1ec1m c\u1ee7a th\u1ef1c ph\u1ea9m. [\u0110em 100g th\u1ef1c ph\u1ea9m \u0111\u1ed1t ch\u00e1y th\u00e0nh tro, th\u00e0nh ph\u1ea7n h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1 trong th\u1ef1c ph\u1ea9m b\u1ecb ch\u00e1y ho\u00e0n to\u00e0n. C\u00f2n h\u1ee3p ch\u1ea5t v\u00f4 c\u01a1 s\u1ebd c\u00f2n l\u1ea1i \u1edf d\u1ea1ng tro. Sau \u0111em tro cho v\u00e0o n\u01b0\u1edbc bi\u1ebfn th\u00e0nh d\u1ea1ng dung d\u1ecbch. Sau \u0111\u00f3 d\u00f9ng d\u1ecbch x\u00fat (NaOH) ho\u1eb7c axit clohy\u0111ric (HCl) n\u1ed3ng \u0111\u1ed9 0,1 M \u0111\u1ec3 \u0111\u1ecbnh ph\u00e2n, \u0111\u1ed9 axit ho\u1eb7c \u0111\u1ed9 ki\u1ec1m c\u1ee7a th\u1ef1c ph\u1ea9m \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng s\u1ed1 mililit c\u1ee7a dung d\u1ecbch ki\u1ec1m ho\u1eb7c axit d\u00f9ng \u0111\u1ec3 \u0111\u1ecbnh ph\u00e2n. V\u00ed d\u1ee5 g\u1ea1o v\u00e0 b\u1ed9t m\u00ec c\u00f3 \u0111\u1ed9 axit l\u00e0 3-5. Th\u1ecbt, tr\u1ee9ng g\u00e0, c\u00e1 c\u00f3 \u0111\u1ed9 axit t\u1eeb 10-20, c\u00e0 chua c\u00f3 \u0111\u1ed9 ki\u1ec1m l\u00e0 3-5; cam c\u00f3 \u0111\u1ed9 ki\u1ec1m 5-10, \u0111\u1eadu t\u01b0\u01a1ng, carot c\u00f3 \u0111\u1ed9 ki\u1ec1m l\u1edbn h\u01a1n 9.<\/p>\n\n\n\n
Ng\u01b0\u1eddi s\u1eed d\u1ee5ng th\u1ef1c ph\u1ea9m c\u00f3 t\u00ednh axit l\u00e2u d\u00e0i s\u1ebd h\u00ecnh th\u00e0nh th\u1ec3 ch\u1ea5t c\u00f3 t\u00ednh axit. N\u00f3i m\u1ed9t c\u00e1ch t\u01b0\u01a1ng \u0111\u1ed1i, ng\u01b0\u1eddi c\u00f3 th\u1ec3 ch\u1ea5t axit th\u01b0\u1eddng c\u00f3 s\u1ee9c y\u1ebfu, tay ch\u00e2n th\u01b0\u1eddng l\u1ea1nh, d\u1ec5 b\u1ecb c\u1ea3m, v\u1ebft th\u01b0\u01a1ng kh\u00f3 li\u1ec1n mi\u1ec7ng. V\u00ec v\u1eady ch\u00fang ta c\u1ea7n \u0111i\u1ec1u ch\u1ec9nh c\u01a1 c\u1ea5u th\u1ee9c \u0103n \u0111\u1ec3 c\u00e2n b\u1eb1ng \u0111\u1ed9 axit, ki\u1ec1m c\u1ee7a th\u1ee9c \u0103n.<\/p>\n\n\n\n
T\u1eeb kho\u00e1: Th\u1ee9c \u0103n c\u00f3 t\u00ednh axit; Th\u1ee9c \u0103n c\u00f3 t\u00ednh ki\u1ec1m.<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
Nhi\u1ec1u ng\u01b0\u1eddi cho r\u1eb1ng, n\u01b0\u1edbc cam chua \u1eaft ph\u1ea3i l\u00e0 th\u1ef1c ph\u1ea9m c\u00f3 t\u00ednh axit. Th\u1ef1c ra theo ho\u00e1 h\u1ecdc th\u1ef1c ph\u1ea9m, ng\u01b0\u1eddi ta g\u1ecdi th\u1ef1c ph\u1ea9m c\u00f3 t\u00ednh axit hay ki\u1ec1m kh\u00f4ng ph\u1ea3i \u0111\u1ec3 ch\u1ec9 th\u1ef1c ph\u1ea9m b\u1ea3n th\u00e2n c\u00f3 t\u00ednh axit hay ki\u1ec1m m\u00e0 l\u00e0 ch\u1ec9 vi\u1ec7c, sau khi \u0103n th\u1ef1c ph\u1ea9m v\u00e0o […]<\/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":[8,15],"tags":[],"class_list":["post-8090","post","type-post","status-publish","format-standard","hentry","category-hoa-hoc","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8090","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=8090"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8090\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=8090"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=8090"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=8090"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}