Th\u1eed th\u00e1ch \u0103n k\u1eb9o d\u1eeba \u0111\u00fang c\u00e1ch ngay t\u1eeb l\u1ea7n \u0111\u1ea7u ti\u00ean, li\u1ec7u b\u1ea1n \u0111\u00e3 chi\u1ebfn th\u1eafng???<\/p>\n
Ph\u1ea3i ch\u0103ng nh\u01b0 nhi\u1ec1u lo\u1ea1i k\u1eb9o kh\u00e1c, ch\u00fang ta th\u01b0\u1eddng b\u00f3c b\u1ecf l\u1edbp v\u1ecf b\u00ean ngo\u00e0i, nh\u01b0ng\u2026 \u201cKhoan, d\u1eebng kho\u1ea3ng ch\u1eebng l\u1ea1i 2s\u201d. Hmmm sao \u0111\u00e3 b\u1ecf 1 l\u1edbp v\u1ecf gi\u1ea5y b\u00ean ngo\u00e0i r\u1ed3i m\u00e0 v\u1eabn c\u00f2n m\u1ed9t l\u1edbp gi\u1ea5y n\u1eefa nh\u1ec9? Hay c\u1ee9 b\u00f3c ra v\u1eady. Nh\u01b0ng r\u1ed3i ph\u1ea3i t\u1eeb b\u1ecf v\u00ec l\u1edbp gi\u1ea5y \u0111\u00f3 d\u00ednh qu\u00e1 ch\u1eb7t l\u1ea5y k\u1eb9o v\u00e0 ngay khi \u0111\u01b0a v\u00e0o mi\u1ec7ng, l\u1edbp m\u00e0ng \u0111\u00f3 l\u1eadp t\u1ee9c tan ra.<\/p>\n
V\u1eady \u0111\u00e3 bao gi\u1edd b\u1ea1n t\u1ef1 h\u1ecfi: \u201cLo\u1ea1i gi\u1ea5y tr\u1eafng \u0111\u1ee5c n\u00e0y l\u00e0 g\u00ec m\u00e0 l\u1ea1i c\u00f3 th\u1ec3 \u0103n \u0111\u01b0\u1ee3c?\u201d<\/p>\n
Lo\u1ea1i gi\u1ea5y \u0111\u01b0\u1ee3c \u0111\u1ec1 c\u1eadp \u1edf \u0111\u00e2y ch\u00ednh l\u00e0 gi\u1ea5y g\u1ea1o n\u1ebfp, hay c\u00f2n g\u1ecdi l\u00e0 gi\u1ea5y k\u1eb9o t\u1ef1 tan.<\/p>\n
G\u1ecdi l\u00e0 gi\u1ea5y g\u1ea1o n\u1ebfp nh\u01b0ng n\u00f3 c\u00f3 th\u1ef1c s\u1ef1 l\u00e0m t\u1eeb g\u1ea1o n\u1ebfp?<\/p>\n
C\u00e2u tr\u1ea3 l\u1eddi l\u00e0 KH\u00d4NG. Th\u1ef1c ch\u1ea5t n\u00f3 \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb tinh b\u1ed9t l\u00faa m\u00ec v\u00e0 tinh b\u1ed9t ng\u00f4.<\/p>\n
Nguy\u00ean li\u1ec7u l\u00e0m ra gi\u1ea5y g\u1ea1o n\u1ebfp<\/p>\n
C\u00e1c m\u00f3n \u0103n \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb b\u1ed9t g\u1ea1o n\u1ebfp th\u01b0\u1eddng r\u1ea5t d\u1ebbo v\u00e0 th\u01a1m ngon. Nh\u01b0ng t\u1ea1i sao ng\u01b0\u1eddi ta l\u1ea1i kh\u00f4ng du\u0300ng n\u00f3 \u0111\u1ec3 l\u00e0m ra gi\u1ea5y k\u1eb9o t\u1ef1 tan m\u00e0 l\u1ea1i du\u0300ng c\u00e1c lo\u1ea1i tinh b\u1ed9t ng\u00f4, l\u00faa m\u00ec???<\/p>\n
Ch\u00ednh l\u00e0 do h\u00e0m l\u01b0\u1ee3ng amilopectin trong g\u1ea1o n\u1ebfp kh\u00e1c v\u1edbi c\u00e1c lo\u1ea1i tinh b\u1ed9t c\u00f2n l\u1ea1i.<\/p>\n
Tinh b\u1ed9t l\u00e0 m\u1ed9t polysaccharide carbohydrates ch\u1ee9a h\u1ed7n h\u1ee3p amylose (tan \u0111\u01b0\u1ee3c trong n\u01b0\u1edbc) v\u00e0 amylopectin (h\u1ea7u nh\u01b0 kh\u00f4ng tan trong n\u01b0\u1edbc, c\u1ea5u h\u00ecnh d\u1ea1ng chu\u1ed7i d\u00e0i li\u00ean k\u1ebft ch\u1eb7t ch\u1ebd v\u1edbi nhau).<\/p>\n<\/li>\n
H\u00e0m l\u01b0\u1ee3ng amilopectin trong g\u1ea1o n\u1ebfp r\u1ea5t cao (98%) n\u00ean l\u00e0m gi\u1ea5y g\u1ea1o s\u1ea3n xu\u1ea5t t\u1eeb g\u1ea1o n\u1ebfp c\u00f3 \u0111\u1ed9 tan ch\u1eadm h\u01a1n.<\/p>\n<\/li>\n
Trong khi \u0111\u00f3 tinh b\u1ed9t ng\u00f4 v\u00e0 b\u1ed9t m\u00ec c\u00f3 h\u00e0m l\u01b0\u1ee3ng amilopectin th\u1ea5p h\u01a1n, gi\u1ea5y g\u00f3i k\u1eb9o l\u00e0m t\u1eeb ch\u00fang s\u1ebd d\u1ec5 d\u00e0ng tan trong n\u01b0\u1edbc. Khi \u0103n protein c\u1ee7a h\u1ed3 tinh b\u1ed9t b\u1ecb ph\u00e2n gi\u1ea3i b\u1edfi enzyme amylase c\u00f3 trong n\u01b0\u1edbc b\u1ecdt v\u00e0 tan m\u1ea5t.<\/p>\n<\/li>\n<\/ul>\n
V\u1ecf ngo\u00e0i gi\u00fap b\u1ea3o v\u1ec7 s\u1ea3n ph\u1ea9m lu\u00f4n \u0111\u01b0\u1ee3c v\u1ec7 sinh. Nh\u01b0ng c\u0169ng kh\u00f4ng th\u1ec3 b\u1ecf \u0111i l\u1edbp gi\u1ea5y trong v\u00ec n\u00f3 c\u00f3 t\u00e1c d\u1ee5ng h\u00fat \u1ea9m nh\u1edd c\u1ea5u tr\u00fac x\u1ed1p c\u1ee7a tinh b\u1ed9t, gi\u1eef cho k\u1eb9o d\u1eeba kh\u00f4ng b\u1ecb ch\u1ea3y n\u01b0\u1edbc hay m\u1ea5t m\u00f9i. Ngo\u00e0i ra, ch\u00ednh l\u1edbp v\u1ecf b\u1ecdc n\u00e0y gi\u00fap k\u1eb9o kh\u00f4ng b\u1ecb d\u00ednh v\u00e0o l\u1edbp v\u1ecf gi\u1ea5y b\u00ean ngo\u00e0i v\u00e0 c\u0169ng nh\u01b0 kh\u00f4ng b\u1ecb d\u00ednh tay khi c\u1ea7m k\u1eb9o n\u1eefa n\u00e8. C\u0169ng v\u00ec c\u00f4ng d\u1ee5ng n\u00e0y m\u00e0 trong \u201cc\u01a1n s\u1ed1t k\u1eb9o nougat\u201d v\u00e0o T\u1ebft n\u0103m ngo\u00e1i, gi\u1ea5y g\u1ea1o \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 g\u00f3i k\u1eb9o H\u1ea1nh ph\u00fac \u0111\u00f3.<\/p>\n
Li\u1ec7u b\u1ea1n c\u00f3 ngh\u0129 r\u1eb1ng quy tr\u00ecnh l\u00e0m gi\u1ea5y g\u1ea1o n\u1ebfp ph\u1ea3i r\u1ea5t ph\u1ee9c t\u1ea1p?<\/p>\n
Tuy nhi\u00ean kh\u00f4ng, b\u1ea1n ch\u1ec9 c\u1ea7n \u0111em tinh b\u1ed9t tr\u1ed9n v\u00e0o n\u01b0\u1edbc n\u00f3ng t\u1eeb 65\u00b0C tr\u1edf l\u00ean \u0111\u1ec3 tinh b\u1ed9t tan th\u00e0nh dung d\u1ecbch keo, g\u1ecdi l\u00e0 h\u1ed3 tinh b\u1ed9t. Tr\u01b0\u1edbc \u0111\u00f3 h\u00e3y c\u1ed1 g\u1eafng lo\u1ea1i b\u1ecf t\u1ea1p ch\u1ea5t \u0111\u1ec3 th\u00e0nh ph\u1ea9m \u0111\u01b0\u1ee3c \u0111\u1eb9p nh\u1ea5t. Sau \u0111\u00f3 d\u00f9ng m\u00e1y \u0111\u1ec3 tr\u1ea3i th\u00e0nh l\u1edbp m\u1ecfng v\u00e0 sau c\u00f9ng l\u00e0 \u0111em s\u1ea5y kh\u00f4 s\u1ebd thu \u0111\u01b0\u1ee3c gi\u1ea5y g\u1ea1o n\u1ebfp t\u1ef1 tan c\u00f3 m\u00e0u trong m\u1edd, tr\u1eafng \u0111\u1ee5c.\u00a0Ch\u1ec9 v\u1edbi m\u1ed9t v\u00e0i thao t\u00e1c \u0111\u01a1n gi\u1ea3n, b\u1ea1n \u0111\u00e3 c\u00f3 ngay m\u1ed9t t\u1ea5m gi\u1ea5y m\u1ecfng, v\u1eeba \u0103n \u0111\u01b0\u1ee3c v\u1eeba b\u1ecdc \u0111\u01b0\u1ee3c k\u1eb9o ph\u1ea3i kh\u00f4ng n\u00e0o?<\/p>\n
Tinh b\u1ed9t c\u00f3 th\u1ec3 \u0103n \u0111\u01b0\u1ee3c v\u1eady n\u00ean gi\u1ea5y g\u1ea1o n\u1ebfp t\u1ea5t nhi\u00ean l\u00e0 c\u0169ng c\u00f3 th\u1ec3 \u0103n \u0111\u01b0\u1ee3c. V\u1eady n\u00ean n\u1ebfu nh\u01b0 b\u1ea1n v\u1eabn \u0111ang c\u00f2n c\u00f3 c\u1ed1 b\u00f3c b\u1ecf l\u1edbp gi\u1ea5y tr\u1eafng \u0111\u1ee5c n\u00e0y v\u00ec cho r\u1eb1ng kh\u00f4ng \u0103n \u0111\u01b0\u1ee3c th\u00ec h\u00e3y d\u1eebng l\u1ea1i ngay nh\u00e9.<\/p>\n
Ti\u1ec1m n\u0103ng ph\u00e1t tri\u1ec3n s\u1ea3n ph\u1ea9m b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng<\/p>\n
C\u00e0ng t\u00ecm hi\u1ec3u m\u1edbi th\u1ea5y s\u1ef1 th\u00fa v\u1ecb xung quanh lo\u1ea1i gi\u1ea5y t\u1ef1 tan n\u00e0y. T\u1eeb nguy\u00ean li\u1ec7u qu\u00e1 \u0111\u1ed7i quen thu\u1ed9c l\u00e0 tinh b\u1ed9t, ch\u00fang ta c\u00f3 th\u1ec3 t\u1ea1o ra \u0111\u01b0\u1ee3c m\u1ed9t lo\u1ea1i bao b\u00ec sinh h\u1ecdc kh\u00f4ng nh\u1eefng th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng, m\u00e0 c\u00f2n c\u00f3 kh\u1ea3 n\u0103ng thay th\u1ebf c\u00e1c lo\u1ea1i bao b\u00ec th\u00f4ng th\u01b0\u1eddng kh\u00e1c.<\/p>\n
Bao b\u00ec sinh h\u1ecdc t\u1eeb tinh b\u1ed9t s\u1eafn<\/p>\n
M\u1eb7c d\u00f9 bao b\u00ec sinh h\u1ecdc l\u00e0 m\u1ed9t l\u0129nh v\u1ef1c tri\u1ec3n v\u1ecdng trong t\u01b0\u01a1ng lai, nh\u01b0ng c\u00e1c nghi\u00ean c\u1ee9u v\u1ec1 \u1ee9ng d\u1ee5ng th\u1ef1c ph\u1ea9m v\u1eabn c\u00f3 kh\u00e1 nhi\u1ec1u kh\u00f3 kh\u0103n, vi\u1ec7c ph\u00e1t tri\u1ec3n c\u00e1c c\u00f4ng ngh\u1ec7 m\u1edbi \u0111\u1ec3 c\u1ea3i thi\u1ec7n c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a ch\u00fang \u0111ang c\u00f2n l\u00e0 m\u1ed9t th\u00e1ch th\u1ee9c l\u1edbn. Hy v\u1ecdng r\u1eb1ng trong t\u01b0\u01a1ng lai, c\u00e1c lo\u1ea1i bao b\u00ec sinh h\u1ecdc s\u1ebd \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u ho\u00e0n thi\u1ec7n v\u00e0 \u0111\u01b0a ra s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong \u0111\u1eddi s\u1ed1ng, g\u00f3p ph\u1ea7n v\u00e0o vi\u1ec7c gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng \u0111ang nh\u1ee9c nh\u1ed1i hi\u1ec7n nay.<\/p>\n
T\u00e0i li\u1ec7u tham kh\u1ea3o:<\/strong><\/p>\n 1.\u00a0Rice Starch – an overview | ScienceDirect Topics<\/a><\/p>\n