{"id":4868,"date":"2016-04-11T06:52:17","date_gmt":"2016-04-10T23:52:17","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=4868"},"modified":"2017-10-02T14:02:31","modified_gmt":"2017-10-02T07:02:31","slug":"su-that-ve-thuc-pham-tat-ca-nhung-thu-ban-an-deu-la-hoa-chat","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/su-that-ve-thuc-pham-tat-ca-nhung-thu-ban-an-deu-la-hoa-chat\/","title":{"rendered":"S\u1ef1 th\u1eadt v\u1ec1 th\u1ef1c ph\u1ea9m: T\u1ea5t c\u1ea3 nh\u1eefng th\u1ee9 b\u1ea1n \u0103n \u0111\u1ec1u l\u00e0 h\u00f3a ch\u1ea5t"},"content":{"rendered":"

Ng\u01b0\u1eddi ta \u0111ang n\u00f3i nhi\u1ec1u v\u1ec1 h\u00f3a ch\u1ea5t trong th\u1ef1c ph\u1ea9m v\u00e0 nh\u1eefng t\u00e1c h\u1ea1i c\u1ee7a n\u00f3 \u0111\u1ed1i v\u1edbi s\u1ee9c kh\u1ecfe con ng\u01b0\u1eddi, d\u1ec5 li\u00ean t\u01b0\u1edfng nh\u1ea5t l\u00e0 ung th\u01b0. V\u1ea5n \u0111\u1ec1 c\u1ea7n l\u00e0m r\u00f5 \u1edf \u0111\u00e2y r\u1eb1ng t\u1ea5t c\u1ea3 m\u1ecdi th\u1ee9 quanh ta, bao g\u1ed3m c\u1ea3 th\u1ee9c \u0103n, n\u01b0\u1edbc u\u1ed1ng m\u1ed7i ng\u00e0y \u0111\u1ec1u l\u00e0 h\u00f3a ch\u1ea5t, th\u00ed d\u1ee5 nh\u01b0 mu\u1ed1i m\u00e0 ch\u00fang ta b\u1ecf v\u00e0o xo\u00e0i l\u1eafc l\u00e0 NaCl, n\u01b0\u1edbc m\u00e0 ch\u00fang ta u\u1ed1ng l\u00e0 H2O. V\u1eady l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ph\u00e2n bi\u1ec7t \u0111\u00e2u m\u1edbi th\u1eadt s\u1ef1 l\u00e0 h\u00f3a ch\u1ea5t g\u00e2y h\u1ea1i cho ch\u00fang ta?<\/strong><\/p>\n

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X\u00e9t ri\u00eang nh\u1eefng h\u00f3a ch\u1ea5t trong th\u1ef1c ph\u1ea9m c\u1ee7a ch\u00fang ta c\u00f3 th\u1ec3 chia th\u00e0nh 4 nh\u00f3m ch\u00ednh: carbohydrate, protein, ch\u1ea5t b\u00e9o v\u00e0 lipids, v\u00e0 nh\u00f3m nh\u1eefng th\u1ee9 kh\u00e1c. Nh\u00f3m cu\u1ed1i c\u00f9ng n\u00e0y kh\u00f4ng x\u00e1c \u0111\u1ecbnh c\u1ee5 th\u1ec3 m\u1ed9t lo\u1ea1i h\u00f3a ch\u1ea5t n\u00e0o m\u00e0 n\u00f3 bao g\u1ed3m c\u00e1c vitamin, kho\u00e1ng ch\u1ea5t, d\u01b0\u1ee3c ph\u1ea9m v\u00e0 d\u1ea5u v\u1ebft (trace) c\u1ee7a h\u00e0ng tr\u0103m lo\u1ea1i h\u00f3a ch\u1ea5t m\u00e0 ch\u00fang ta ti\u00eau th\u1ee5 m\u1ed7i ng\u00e0y.<\/p>\n

T\u1ea5t nhi\u00ean, c\u00f3 nh\u1eefng lo\u1ea1i ch\u1ea5t \u0111\u1ed9c v\u00e0 c\u00f3 h\u1ea1i, nh\u01b0ng n\u00ean nh\u1edb l\u00e0 c\u0169ng c\u00f3 r\u1ea5t nhi\u1ec1u lo\u1ea1i h\u00f3a ch\u1ea5t ho\u00e0n to\u00e0n v\u00f4 h\u1ea1i th\u1eadm ch\u00ed l\u00e0 t\u1ed1t cho con ng\u01b0\u1eddi. B\u00ean d\u01b0\u1edbi l\u00e0 danh s\u00e1ch nh\u1eefng lo\u1ea1i h\u00f3a ch\u1ea5t th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n trong nh\u00e0 b\u1ebfp c\u1ee7a b\u1ea1n v\u00e0 \u00fd ngh\u0129a c\u1ee7a n\u00f3 \u0111\u1ed1i v\u1edbi s\u1ee9c kh\u1ecfe con ng\u01b0\u1eddi.<\/p>\n

Protein, lipid v\u00e0 carbohydrates \u0111\u1ec1u \u0111\u01b0\u1ee3c x\u1ebfp v\u00e0o nh\u00f3m c\u00e1c ch\u1ea5t dinh d\u01b0\u1ee1ng \u0111a l\u01b0\u1ee3ng (macronutrient) v\u00e0 n\u00f3 cung c\u1ea5p ph\u1ea7n l\u1edbn nhu c\u1ea7u n\u0103ng l\u01b0\u1ee3ng h\u00e0ng ng\u00e0y c\u1ee7a ch\u00fang ta. M\u1eb7c d\u00f9 trong b\u1ea3ng tu\u1ea7n ho\u00e0n ch\u00fang ta c\u00f3 t\u1edbi h\u01a1n 120 nguy\u00ean t\u1ed1 nh\u01b0ng 3 lo\u1ea1i h\u00f3a ch\u1ea5t thu\u1ed9c nh\u00f3m macronutrient ch\u1ec9 c\u1ea5u th\u00e0nh t\u1eeb 4 nguy\u00ean t\u1ed1 l\u00e0 Carbon, Hydro, Oxy v\u00e0 Nito v\u1edbi d\u1ea5u v\u1ebft c\u1ee7a c\u00e1c nguy\u00ean t\u1ed1 c\u00f2n l\u1ea1i.<\/p>\n

Protein l\u00e0 m\u1ed9t h\u1ee3p ch\u1ea5t cao ph\u00e2n t\u1eed \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh t\u1eeb nh\u1eefng \u0111\u01a1n ph\u00e2n l\u00e0 c\u00e1c amino acids. Ngu\u1ed3n th\u1ef1c ph\u1ea9m protein bao g\u1ed3m th\u1ecbt, tr\u1ee9ng, \u0111\u1ed3ng th\u1eddi trong \u0111\u1eadu, h\u1ea1t c\u00e0 ph\u00ea v\u00e0 b\u1ed9t m\u00ec c\u0169ng c\u00f3 m\u1ed9t l\u01b0\u1ee3ng \u0111\u00e1ng k\u1ec3 protein.<\/p>\n

Carbohydrate bao g\u1ed3m carbon, hydro v\u00e0 oxy v\u00e0 \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i b\u1eb1ng nhi\u1ec1u c\u00e1ch ri\u00eang v\u1edbi nhau. C\u00e1i m\u00e0 c\u00e1c b\u1ea1n hay g\u1ecdi l\u00e0 “Carb” (trong t\u1eeb ch\u1ebf \u0111\u1ed9 \u0103n “low Carbs” n\u00e0y n\u1ecd…) l\u00e0 bao g\u1ed3m c\u00e1c ch\u1ea5t nh\u01b0 \u0111\u01b0\u1eddng, tinh b\u1ed9t, cellulose v\u00e0 t\u1ea5t c\u1ea3 \u0111\u1ec1u \u0111\u01b0\u1ee3c c\u01a1 th\u1ec3 ti\u00eau h\u00f3a theo nh\u1eefng c\u00e1ch kh\u00e1c nhau.<\/p>\n

\u0110\u01b0\u1eddng c\u0169ng l\u00e0 m\u1ed9t carbohydrate nh\u01b0ng r\u1eafc r\u1ed1i h\u01a1n l\u00e0 “\u0111\u01b0\u1eddng thi\u00ean nhi\u00ean” m\u1edbi l\u00e0 carbohydrate, c\u00f2n \u0111\u01b0\u1eddng h\u00f3a h\u1ecdc, bao g\u1ed3m aspartame v\u00e0 saccharin,… kh\u00f4ng ph\u1ea3i l\u00e0 carbohydrate ch\u1ec9 l\u00e0 ch\u1ea5t t\u1ea1o ng\u1ecdt. M\u1eddi \u0111\u1ecdc th\u00eam: S\u1ef1 th\u1eadt v\u1ec1 \u0111\u01b0\u1eddng h\u00f3a h\u1ecdc\u0111\u1ec3 bi\u1ebft th\u00eam r\u1eb1ng ch\u1ea5t t\u1ea1o ng\u1ecdt th\u01b0\u1eddng ch\u1eb3ng nh\u1eefng kh\u00f4ng c\u00f3 h\u1ea1i m\u00e0 c\u00f2n c\u00f3 l\u1ee3i, trong khi nhi\u1ec1u nghi\u00ean c\u1ee9u \u0111\u00e3 ch\u1ee9ng minh r\u1eb1ng \u0111\u01b0\u1eddng tr\u1eafng, \u0111\u01b0\u1eddng fructose,… v\u1ed1n \u0111\u01b0\u1ee3c cho l\u00e0 \u0111\u01b0\u1eddng thi\u00ean nhi\u00ean l\u1ea1i d\u1eabn t\u1edbi nhi\u1ec1u v\u1ea5n \u0111\u1ec1 s\u1ee9c kh\u1ecfe.<\/p>\n

C\u00f2n t\u01b0\u01a1ng t\u1ef1 nh\u01b0 Carb, ch\u1ea5t b\u00e9o c\u0169ng ch\u1ec9 ch\u1ee9a carbon, hydro v\u00e0 oxy nh\u01b0ng n\u1ebfu x\u00e9t v\u1ec1 c\u00f9ng kh\u1ed1i l\u01b0\u1ee3ng th\u00ec ch\u1ea5t b\u00e9o cung c\u1ea5p l\u01b0\u1ee3ng n\u0103ng l\u01b0\u1ee3ng g\u1ea5p \u0111\u00f4i so v\u1edbi protein ho\u1eb7c carbs. C\u00f3 l\u1ebd v\u00ec l\u00fd do n\u00e0y m\u00e0 ch\u1ea5t b\u00e9o th\u01b0\u1eddng b\u1ecb cho l\u00e0 c\u00f3 t\u00e1c d\u1ee5ng x\u1ea5u h\u01a1n so v\u1edbi c\u00e1c lo\u1ea1i ch\u1ea5t dinh d\u01b0\u1ee1ng \u0111a l\u01b0\u1ee3ng c\u00f2n l\u1ea1i, tuy nhi\u00ean c\u00f3 m\u1ed9t s\u1ed1 ch\u1ea5t b\u00e9o l\u00e0 ho\u00e0n to\u00e0n c\u1ea7n thi\u1ebft cho m\u1ed9t ch\u1ebf \u0111\u1ed9 \u0103n u\u1ed1ng l\u00e0nh m\u1ea1nh.<\/p>\n

Nghe n\u00f3i acid ch\u00fang ta c\u00f3 v\u1ebb h\u01a1i d\u00e8 ch\u1eebng b\u1edfi th\u01b0\u1eddng ngh\u0129 t\u1edbi H2SO4 ho\u1eb7c HCl \u0111\u1eadm \u0111\u1eb7c g\u00e2y ph\u1ecfng, \u0103n m\u00f2n kim lo\u1ea1i,… Nh\u01b0ng n\u00ean nh\u1edb l\u00e0 c\u00f2n r\u1ea5t nhi\u1ec1u lo\u1ea1i acid \u0111ang n\u1eb1m trong t\u1ee7 l\u1ea1nh nh\u00e0 b\u1ea1n, c\u00f3 lo\u1ea1i b\u1ea1n \u0103n u\u1ed1ng h\u00e0ng ng\u00e0y m\u00e0 trong s\u1ed1 \u0111\u00f3 c\u0169ng c\u00f3 c\u00e1i \u0103n m\u00f2n kim lo\u1ea1i \u0111\u01b0\u1ee3c lu\u00f4n.<\/p>\n

H\u00e3y x\u00e9t nh\u1eefng lo\u1ea1i th\u1ee9c \u0103n v\u00e0 \u0111\u1ed3 u\u1ed1ng c\u00f3 t\u00ednh acid. M\u1ed9t th\u00ed d\u1ee5 \u0111i\u1ec3n h\u00ecnh l\u00e0 lon Coca Cola c\u00f3 \u0111\u1ed9 pH v\u00e0o kho\u1ea3ng 3.2 (c\u00e0ng th\u1ea5p ngh\u0129a l\u00e0 c\u00e0ng c\u00f3 t\u00ednh acid, 7 l\u00e0 trung t\u00ednh nh\u01b0 n\u01b0\u1edbc tinh khi\u1ebft). V\u1edbi \u0111\u1ed9 acid n\u00e0y ho\u00e0n to\u00e0n \u0111\u1ee7 \u0111\u1ec3 ch\u00fang ta c\u00f3 th\u1ec3 d\u00f9ng n\u00f3 nh\u1eb1m lo\u1ea1i b\u1ecf g\u1ec9 ra kh\u1ecfi c\u00e1c v\u1eadt d\u1ee5ng b\u1eb1ng th\u00e9p. (Xem th\u00eam h\u01b0\u1edbng d\u1eabn d\u00f9ng Coca Cola \u0111\u1ec3 l\u00e0m m\u1edbi ngo\u1ea1i th\u1ea5t xe). V\u00e0 b\u1ea3n ch\u1ea5t l\u00e0 trong Coca Cola c\u00f3 ch\u1ee9a Acid phosphoric.<\/p>\n

V\u1eady \u0111\u1ecdc t\u1edbi \u0111\u00e2y b\u1ea1n s\u1ee3 u\u1ed1ng Coca Cola v\u00ec n\u00f3 c\u00f3 acid “ph\u1ed1t pho r\u00edch” m\u00e0 b\u1ea1n h\u1ecdc trong m\u00f4n h\u00f3a n\u0103m l\u1edbp 8? B\u1ea1n \u0111\u00e3 s\u1ebd b\u1ecf l\u1ee1 lo\u1ea1i n\u01b0\u1edbc u\u1ed1ng ngon n\u00e0y n\u1ebfu b\u1ea1n kh\u00f4ng \u0111\u1ecdc ti\u1ebfp! Nguy\u00ean nh\u00e2n l\u00e0 ngay trong d\u1ea1 d\u00e0y c\u1ee7a ch\u00fang ta c\u0169ng c\u00f3 ch\u1ee9a Acid phosphoric v\u00e0 th\u1eadm ch\u00ed \u0111\u1ed9 acid trong \u0111\u00f3 c\u00f2n l\u1edbn h\u01a1n n\u1eefa. Tr\u00ean th\u1ef1c t\u1ebf th\u00ec t\u00e1o, cam c\u0169ng c\u00f3 \u0111\u1ed9 pH gi\u1ed1ng nh\u01b0 Coka v\u00e0 n\u01b0\u1edbc chanh th\u00ec c\u00f3 \u0111\u1ed9 acid cao g\u1ea5p 10 l\u1ea7n. N\u01b0\u1edbc chanh t\u1ed1t cho s\u1ee9c kh\u1ecfe l\u1eafm \u0111\u00f3 nha.<\/p>\n

V\u00e0 \u0111\u1eebng qu\u00ean l\u00e0 c\u00f2n bia, c\u00e0 ph\u00ea, n\u01b0\u1edbc tr\u00e0, s\u1eefa, c\u1ee7 ki\u1ec7u ng\u00e2m gi\u1ea5m chua (d\u01b0a) c\u0169ng \u0111\u01b0\u1ee3c x\u1ebfp l\u00e0 acid v\u00e0 n\u00f3 ch\u1eb3ng nh\u1eefng ngon m\u00e0 c\u00f2n c\u00f3 nhi\u1ec1u t\u00e1c d\u1ee5ng t\u1ed1t \u0111\u1ed1i v\u1edbi s\u1ee9c kh\u1ecfe n\u1eefa. Tr\u00ean th\u1ef1c t\u1ebf th\u00ec t\u00ednh acid c\u1ee7a th\u1ef1c ph\u1ea9m v\u00e0 th\u1ee9c u\u1ed1ng \u0111\u00e3 k\u1ebft h\u1ee3p c\u00f9ng v\u1edbi c\u00e1c h\u00f3a ch\u1ea5t kh\u00e1c, cung c\u1ea5p th\u00eam h\u01b0\u01a1ng v\u1ecb gi\u00fap ch\u00fang ta \u0103n ngon mi\u1ec7ng h\u01a1n. N\u1ebfu kh\u00f4ng c\u00f3 ch\u00fang, nhi\u1ec1u lo\u1ea1i th\u1ef1c ph\u1ea9m s\u1ebd v\u00f4 c\u00f9ng nh\u1ea1t nh\u1ebdo. H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng \u0103n h\u1ea3i s\u1ea3n m\u00e0 kh\u00f4ng c\u00f3 chanh v\u1eaft v\u00e0o mu\u1ed1i \u1edbt, \u0103n b\u00f2 nh\u00fang d\u1ea5m m\u00e0 n\u1ed3i n\u01b0\u1edbc to\u00e0n n\u01b0\u1edbc l\u00e3 th\u00ec v\u00f4 v\u1ecb bi\u1ebft m\u1ea5y.<\/p>\n

Ng\u01b0\u1ee3c l\u1ea1i v\u1edbi acid trong thang pH th\u00ec ch\u00fang ta c\u00f3 ki\u1ec1m (ba z\u1edd, Basic) v\u00e0 c\u00e1c ch\u1ea5t c\u00f3 t\u00ednh n\u00e0y s\u1ebd c\u00f3 \u0111\u1ed9 pH l\u1edbn h\u01a1n 7. S\u1ed1 l\u01b0\u1ee3ng c\u00e1c ki\u1ec1m c\u00f3 trong th\u1ef1c ph\u1ea9m h\u00e0ng ng\u00e0y c\u1ee7a ch\u00fang ta \u00edt h\u01a1n acid, nh\u01b0ng c\u0169ng c\u00f3 th\u00ed d\u1ee5 nh\u01b0 tr\u1ee9ng, m\u1ed9t v\u00e0i lo\u1ea1i b\u00e1nh n\u01b0\u1edbng nh\u01b0 b\u00e1nh b\u00f4ng lan, b\u00e1nh quy ho\u1eb7c Natri bicacbonat (NaHCO3, c\u00f2n g\u1ecdi l\u00e0 Baking Soda, b\u1ed9t n\u1ed5i, thu\u1ed1c mu\u1ed1i, b\u1ed9t n\u1edf, thu\u1ed1c s\u1ee7i,… c\u00f4ng d\u1ee5ng c\u1ee7a n\u00f3 th\u00ec r\u1ea5t nhi\u1ec1u, h\u00e3y h\u1ecfi m\u1eb9 ho\u1eb7c b\u1ea1n g\u00e1i s\u1ebd bi\u1ebft n\u1ea5u ch\u00e8 \u0111\u1eadu \u0111en th\u00ec lo\u1ea1i ch\u1ea5t n\u00e0y quan tr\u1ecdng t\u1edbi m\u1ee9c n\u00e0o v\u00e0 ch\u00e8 \u0111\u1eadu \u0111en th\u00ec r\u1ea5t ngon).<\/p>\n

\u0110\u1ea5y, h\u00f3a ch\u1ea5t \u0111i\u1ec3n h\u00ecnh nh\u01b0 thu\u1ed1c mu\u1ed1i \u0111\u1ea5y, \u0111\u00e2u h\u1eb3n h\u00f3a ch\u1ea5t l\u00e0 \u0111\u1ed9c \u0111\u00e2u n\u00e0o. Nh\u01b0ng khoan, b\u00ean c\u1ea1nh nh\u1eefng lo\u1ea1i h\u00f3a ch\u1ea5t c\u00f3 l\u1ee3i, gi\u00fap ch\u00fang ta \u0103n ngon mi\u1ec7ng, cung c\u1ea5p dinh d\u01b0\u1ee1ng cho ch\u00fang ta ho\u1eb7c l\u00e0m cu\u1ed9c s\u1ed1ng ta t\u1ed1t \u0111\u1eb9p h\u01a1n th\u00ec c\u0169ng c\u00f3 nh\u1eefng th\u1ee9 h\u00f3a ch\u1ea5t \u0111\u1ed9c h\u1ea1i. B\u00ean d\u01b0\u1edbi l\u00e0 m\u1ed9t s\u1ed1.<\/p>\n

C\u00f3 m\u1ed9t s\u1ef1 th\u1eadt \u0111\u00e1ng bu\u1ed3n l\u00e0 d\u00f9 b\u1ea1n k\u1ef9 t\u00ednh \u0111\u1ebfn \u0111\u00e2u th\u00ec ngay trong nh\u00e0 b\u1ebfp c\u1ee7a b\u1ea1n c\u0169ng ch\u1eafc ch\u1eafn s\u1ebd c\u00f3 nh\u1eefng lo\u1ea1i h\u00f3a ch\u1ea5t \u0111\u1ed9c. Kh\u00f4ng \u0111\u00e2u xa. Ngay tr\u00ean b\u1ed3n r\u1eeda ch\u00e9n ch\u1eafc ch\u1eafn l\u00e0 chai n\u01b0\u1edbc r\u1eeda ch\u00e9n, m\u1ed9t lo\u1ea1i ki\u1ec1m v\u1edbi \u0111\u1ed9 pH t\u1eeb 9 – 10, v\u1eady m\u1edbi “r\u1eeda s\u1ea1ch v\u1ebft d\u1ea7u m\u1ee1, s\u1ea1ch bong kin k\u00edt” \u0111\u01b0\u1ee3c ch\u1ee9 v\u00e0 \u0111\u00e2y l\u00e0 ch\u1ea5t \u0111\u1ed9c \u0111\u1ed1i v\u1edbi c\u01a1 th\u1ec3. T\u01b0\u01a1ng t\u1ef1 nh\u01b0 v\u1eady, x\u00e0 ph\u00f2ng v\u00e0 ch\u1ea5t t\u1ea9y r\u1eeda, n\u01b0\u1edbc Javen c\u0169ng l\u00e0 ki\u1ec1m m\u1ea1nh v\u00e0 nh\u1eb9 th\u00ec \u0103n da, g\u00e2y ph\u1ecfng, g\u00e2y m\u00f9,… n\u1ebfu u\u1ed1ng th\u00ec ng\u1ed9 \u0111\u1ed9c.<\/p>\n

M\u1eb7t kh\u00e1c, ng\u01b0\u1eddi ta c\u0169ng d\u00f9ng m\u1ed9t s\u1ed1 acid m\u1ea1nh \u0111\u1ec3 l\u00e0m ch\u1ea5t l\u00e0m s\u1ea1ch. Th\u00ed d\u1ee5 nh\u01b0 c\u00f3 ch\u1ed7 d\u00f9ng ax\u00edt sulfuric (H2SO4) \u0111\u1ec3 th\u00f4ng c\u1ed1ng,…T\u1ea5t nhi\u00ean \u0111\u00e2y l\u00e0 acid \u0111\u1eadm \u0111\u1eb7c, c\u1ef1c k\u1ef3 nguy hi\u1ec3m khi ti\u1ebfp x\u00fac v\u1edbi da v\u00e0 ch\u1eb3ng c\u00f3 ai \u0111i u\u1ed1ng ch\u00fang c\u1ea3 (th\u1eadt ra ng\u1eedi m\u00f9i \u0111\u00e3 khi\u1ebfp v\u00e0 \u0111\u1ee7 b\u1ecfng r\u1ed3i).<\/p>\n

Qu\u00e1 tr\u00ecnh n\u1ea5u \u0103n b\u1ea3n ch\u1ea5t c\u0169ng l\u00e0 d\u1ef1a tr\u00ean h\u00f3a h\u1ecdc. B\u1ea1n n\u1ea5u \u0103n b\u1eb1ng g\u00ec nh\u1ec9? Th\u01b0\u1eddng l\u00e0 b\u1eb1ng l\u00f2 gas v\u00e0 trong \u0111\u00f3 ch\u00ednh l\u00e0 kh\u00ed h\u00f3a l\u1ecfng (LPG) – th\u1ef1c ra l\u00e0 m\u1ed9t h\u1ed7n h\u1ee3p gi\u1eefa 2 h\u00f3a ch\u1ea5t d\u1ea1ng kh\u00ed l\u00e0 propan v\u00e0 butan, t\u00f9y h\u00e3ng gas m\u00e0 s\u1ebd c\u00f3 t\u1ef7 l\u1ec7 pha tr\u1ed9n 2 lo\u1ea1i ch\u1ea5t n\u00e0y kh\u00e1c nhau (trong gas sinh ho\u1ea1t b\u1ea1n d\u00f9ng \u1edf nh\u00e0 th\u01b0\u1eddng l\u00e0 30:70 ho\u1eb7c 40:60).<\/p>\n

C\u00f4ng th\u1ee9c 2 lo\u1ea1i h\u00f3a ch\u1ea5t tr\u00ean l\u00e0 C3H8 v\u00e0 C4H10, khi \u0111\u1ed1t l\u00ean \u0111\u1ec3 n\u1ea5u \u0103n th\u00ec h\u00f3a h\u1ecdc l\u1edbp 9 \u0111\u00e3 d\u1ea1y ch\u00fang ta l\u00e0 s\u1ea3n ph\u1ea9m t\u1ea1o th\u00e0nh l\u00e0 n\u01b0\u1edbc v\u00e0 CO2. Tuy nhi\u00ean, khi \u0111\u1ed1t ch\u00e1y 2 lo\u1ea1i h\u00f3a ch\u1ea5t n\u00e0y s\u1ebd t\u1ea1o ra ng\u1ecdn l\u1eeda m\u1ea1nh, th\u00edch h\u1ee3p \u0111\u1ec3 n\u1ea5u th\u1ee9c \u0103n ch\u1ee9 kh\u00f4ng th\u00edch h\u1ee3p \u0111\u1ec3 n\u01b0\u1edbng. B\u1ea1n n\u00e0o \u0111\u00e3 n\u01b0\u1edbng kh\u00f4 m\u1ef1c b\u1eb1ng c\u1ed3n (l\u00e0 r\u01b0\u1ee3u, C2H5OH, c\u0169ng l\u00e0 h\u00f3a ch\u1ea5t) s\u1ebd th\u1ea5y l\u00e0 n\u00f3 th\u01a1m, m\u1ec1m v\u00e0 dai h\u01a1n so v\u1edbi n\u01b0\u1edbng kh\u00e9t, c\u1ee9ng b\u1eb1ng b\u1ebfp gas l\u00e0 v\u00ec l\u00fd do n\u00e0y.<\/p>\n

Ch\u01b0a d\u1eebng l\u1ea1i \u1edf \u0111\u00f3, qu\u00e1 tr\u00ecnh n\u1ea5u th\u1ee9c \u0103n s\u1ebd x\u1ea3y ra g\u1ea7n nh\u01b0 v\u00f4 s\u1ed1 c\u00e1c chuy\u1ec3n \u0111\u1ed5i v\u1eadt l\u00fd v\u00e0 h\u00f3a h\u1ecdc, bi\u1ebfn \u0111\u1ed5i th\u00e0nh ph\u1ea7n (t\u1ee9c l\u00e0 c\u00e1c h\u00f3a ch\u1ea5t) c\u00f3 ch\u1ee9a trong th\u1ee9c \u0103n. M\u00e0 \u0111\u1eb7c bi\u1ec7t l\u00e0 th\u1ef1c \u0103n ch\u00fang ta l\u1ea1i x\u00e0i r\u1ea5t nhi\u1ec1u gia v\u1ecb th\u00ec di\u1ec5n bi\u1ebfn trong \u0111\u00f3 c\u00e0ng ph\u1ee9c t\u1ea1p h\u01a1n n\u1eefa. \u0110i\u1ec3n h\u00ecnh nh\u01b0 n\u1ea5u carbohydrate, m\u1ed9t s\u1ef1 k\u1ebft h\u1ee3p \u0111\u01a1n gi\u1ea3n gi\u1eefa \u0111\u01b0\u1eddng v\u00e0 protein s\u1ebd t\u1ea1o n\u00ean s\u1ea3n ph\u1ea9m c\u00f3 m\u00e0u v\u00e0ng n\u00e2u \u0111\u1eb9p m\u1eaft, m\u1ed9t t\u00edn hi\u1ec7u c\u1ee7a m\u00f3n \u0103n \u0111\u00e3 ch\u00edn, r\u1ea5t th\u01a1m ngon m\u00e0 \u0111\u1eb1ng sau \u0111\u00f3 c\u00f2n l\u00e0 ph\u1ea3n \u1ee9ng Maillard (c\u00e1i n\u00e0y c\u0169ng c\u00f3 nhi\u1ec1u chuy\u1ec7n \u0111\u1ec3 n\u00f3i, \u0111\u1ec3 d\u00e0nh b\u00e0i kh\u00e1c n\u00f3i v\u1edbi c\u00e1c b\u1ea1n). Qu\u00e1 tr\u00ecnh n\u00e0y n\u1ebfu l\u1eeda v\u1eeba \u0111\u1ee7, nhi\u1ec7t \u0111\u1ee7 cung c\u1ea5p cho ph\u1ea3n \u1ee9ng th\u00ec m\u00f3n \u0103n s\u1ebd ngon, nh\u01b0ng nhi\u1ec7t qu\u00e1 nhi\u1ec1u th\u00ec c\u00f3 th\u1ec3 d\u1eabn t\u1edbi ch\u00e1y (kh\u00e9t) th\u1ee9c \u0103n lu\u00f4n.<\/p>\n

Tinh b\u1ed9t c\u0169ng l\u00e0 m\u1ed9t lo\u1ea1i carbohydrate kh\u00e1c m\u00e0 t\u00f9y v\u00e0o \u0111i\u1ec1u ki\u1ec7n, c\u00e1ch b\u1ea1n ph\u1ed1i h\u1ee3p m\u00e0 n\u00f3 s\u1ebd t\u1ea1o n\u00ean nhi\u1ec1u s\u1ea3n ph\u1ea9m kh\u00e1c nhau, th\u00ed d\u1ee5 nh\u01b0 ph\u1ee9c t\u1ea1p x\u00edu l\u00e0 h\u00ecnh th\u00e0nh n\u00ean m\u00f3n panna cotta \u0111\u1eb9p m\u1eaft v\u00e0 c\u1ef1c ngon. B\u1ea3n ch\u1ea5t l\u00e0 t\u00f9y v\u00e0o nhi\u1ec7t \u0111\u1ed9, tinh b\u1ed9t s\u1ebd k\u1ebft h\u1ee3p v\u1edbi n\u01b0\u1edbc theo m\u1ed9t c\u00e1ch r\u1ea5t \u0111\u1ed9c \u0111\u00e1o v\u00e0 k\u1ebft qu\u1ea3 l\u00e0 m\u1ed9t c\u1ea5u tr\u00fac s\u1ec7t d\u1ea1ng gel s\u1ebd t\u1ea1o th\u00e0nh. V\u00e0 r\u1ed3i c\u00f2n nhi\u1ec1u ki\u1ec3u n\u1ea5u \u0103n kh\u00e1c, th\u00ed d\u1ee5 nh\u01b0 n\u01b0\u1edbng s\u1ebd l\u00e0m bi\u1ebfn \u0111\u1ed5i th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a th\u1ef1c ph\u1ea9m, b\u1ea3n ch\u1ea5t t\u1ef1 nhi\u00ean l\u00e0 t\u1ea1o n\u00ean c\u00e1c lo\u1ea1i ch\u1ea5t h\u00f3a h\u1ecdc m\u1edbi, c\u00f3 th\u1ec3 c\u00f3 l\u1ee3i, c\u0169ng c\u00f3 th\u1ec3 c\u00f3 h\u1ea1i nh\u01b0 ch\u00e1y kh\u00e9t s\u1ebd h\u00ecnh th\u00e0nh n\u00ean ch\u1ea5t sinh ung th\u01b0,…<\/p>\n

\u0110\u00f3 l\u00e0 b\u1ea3n ch\u1ea5t t\u1ef1 nhi\u00ean c\u1ee7a th\u1ef1c ph\u1ea9m ho\u00e0n to\u00e0n l\u00e0 h\u00f3a ch\u1ea5t. Ph\u1ea1m vi b\u00e0i vi\u1ebft n\u00e0y m\u00ecnh kh\u00f4ng n\u00f3i t\u1edbi nh\u1eefng h\u00f3a ch\u1ea5t b\u00ean ngo\u00e0i th\u1ef1c ph\u1ea9m, th\u00ed d\u1ee5 nh\u01b0 c\u00e1c h\u00f3a ch\u1ea5t b\u1ea3o v\u1ec7 th\u1ef1c v\u1eadt, h\u00f3a ch\u1ea5t b\u1ea3o qu\u1ea3n, h\u00f3a ch\u1ea5t k\u00edch th\u00edch,… v\u1ed1n \u0111\u01b0\u1ee3c cho l\u00e0 c\u00f3 h\u1ea1i t\u1edbi s\u1ee9c kh\u1ecfe. Tuy nhi\u00ean c\u1ea7n l\u00e0m r\u00f5 \u1edf \u0111\u00e2y l\u00e0 d\u00f9ng kh\u00e1i ni\u1ec7m “h\u00f3a ch\u1ea5t” m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c b\u1edfi t\u1ea5t c\u1ea3 m\u1ecdi th\u1ee9 \u0111\u1ec1u t\u1ea1o th\u00e0nh t\u1eeb h\u00f3a ch\u1ea5t. Ch\u00fang ta \u0111\u1eebng k\u1ef3 th\u1ecb h\u00f3a ch\u1ea5t, nh\u00ecn r\u00f5 b\u1ea3n ch\u1ea5t c\u1ee7a v\u1ea5n \u0111\u1ec1 \u0111\u1ec3 c\u00f3 k\u1ebft lu\u1eadn ch\u00ednh x\u00e1c h\u01a1n l\u00e0 quy ch\u1ee5p m\u1ecdi th\u1ee9. M\u1ed9t ng\u01b0\u1eddi b\u1ea1n c\u1ee7a m\u00ecnh n\u00f3i r\u1eb1ng “anh \u1ea5y s\u1ebd kh\u00f4ng bao gi\u1edd \u0103n nh\u1eefng g\u00ec c\u00f3 h\u00f3a ch\u1ea5t”, xin l\u1ed7i m\u00ecnh c\u00f3 l\u1ebd s\u1ebd \u0111\u00e1p r\u1eb1ng “ch\u00fac b\u1ea1n tuy\u1ec7t th\u1ef1c th\u00e0nh c\u00f4ng” :D.<\/p>\n

Tham kh\u1ea3o Ph, RR, TC, Wiki\u200b<\/em><\/span><\/p>\n

Ngu\u1ed3n tinhte.vn<\/em><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Ng\u01b0\u1eddi ta \u0111ang n\u00f3i nhi\u1ec1u v\u1ec1 h\u00f3a ch\u1ea5t trong th\u1ef1c ph\u1ea9m v\u00e0 nh\u1eefng t\u00e1c h\u1ea1i c\u1ee7a n\u00f3 \u0111\u1ed1i v\u1edbi s\u1ee9c kh\u1ecfe con ng\u01b0\u1eddi, d\u1ec5 li\u00ean t\u01b0\u1edfng nh\u1ea5t l\u00e0 ung th\u01b0. V\u1ea5n \u0111\u1ec1 c\u1ea7n l\u00e0m r\u00f5 \u1edf \u0111\u00e2y r\u1eb1ng t\u1ea5t c\u1ea3 m\u1ecdi th\u1ee9 quanh ta, bao g\u1ed3m c\u1ea3 th\u1ee9c \u0103n, n\u01b0\u1edbc u\u1ed1ng m\u1ed7i ng\u00e0y \u0111\u1ec1u l\u00e0 […]<\/p>\n","protected":false},"author":17,"featured_media":5433,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-4868","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/4868","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=4868"}],"version-history":[{"count":2,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/4868\/revisions"}],"predecessor-version":[{"id":5434,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/4868\/revisions\/5434"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/5433"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=4868"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=4868"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=4868"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}