M\u1ed9t nghi\u00ean c\u1ee9u m\u1edbi cho th\u1ea5y c\u00e1c h\u00f3a ch\u1ea5t g\u00e2y t\u1ed5n h\u1ea1i DNA c\u00f3 ch\u1ee9a trong nh\u1eefng m\u00f3n \u0103n ng\u1ecdt y\u00eau th\u00edch c\u1ee7a nhi\u1ec1u ng\u01b0\u1eddi.<\/p>\n
H\u01b0\u01a1ng v\u1ecb \u0111\u01b0\u1ee3c nhi\u1ec1u ng\u01b0\u1eddi m\u00ea v\u00e0 kh\u00f4ng th\u1ec3 nh\u1ea7m l\u1eabn, l\u00e0 m\u00f9i chocolate \u2013 k\u1ebft qu\u1ea3 c\u1ee7a m\u1ed9t lo\u1ea1i cocktail h\u00f3a h\u1ecdc c\u00f3 nhi\u1ec1u h\u01b0\u01a1ng v\u00e0 v\u1ecb kh\u00e1c nhau \u0111\u01b0\u1ee3c t\u1ea1o ra trong qu\u00e1 tr\u00ecnh rang ca cao. Trong s\u1ed1 c\u00e1c v\u1ecb n\u00e0y c\u00f3 m\u1ed9t lo\u1ea1i ph\u00e2n t\u1eed \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 carbonyl ch\u01b0a b\u00e3o h\u00f2a \u03b1,\u03b2.<\/p>\n
M\u1eb7c d\u00f9 g\u00f3p ph\u1ea7n t\u1ea1o n\u00ean h\u01b0\u01a1ng v\u1ecb b\u00e9o ng\u1eady c\u1ee7a chocolate, nh\u01b0ng m\u1ed9t s\u1ed1 ph\u00e2n t\u1eed \u0111\u01b0\u1ee3c ch\u1ee9ng minh l\u00e0 c\u00f3 kh\u1ea3 n\u0103ng g\u00e2y \u0111\u1ed9c gen, n\u00f3i c\u00e1ch kh\u00e1c, vi\u1ec7c ti\u00eau th\u1ee5 c\u00e1c carbonyl kh\u00f4ng b\u00e3o h\u00f2a \u03b1,\u03b2 c\u1ee5 th\u1ec3 l\u00e0 nguy\u00ean nh\u00e2n l\u00e0m h\u1ecfng DNA c\u1ee7a con ng\u01b0\u1eddi.<\/p>\n
Trong k\u1ebft qu\u1ea3 m\u1edbi \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 tr\u00ean T\u1ea1p Ch\u00ed H\u00f3a H\u1ecdc N\u00f4ng Nghi\u1ec7p v\u00e0 Th\u1ef1c Ph\u1ea9m (Journal of Agricultural and Food Chemistry), c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u t\u1eeb Universit\u00e9 Catholique de Louvain (\u0110\u1ea1i H\u1ecdc Catholique de Louvain) c\u1ee7a B\u1ec9 \u0111\u00e3 x\u00e9t nghi\u1ec7m chocolate v\u00e0 c\u00e1c lo\u1ea1i \u0111\u1ed3 ng\u1ecdt \u0111\u00f3ng g\u00f3i kh\u00e1c \u0111\u1ec3 xem li\u1ec7u c\u00f3 lo\u1ea1i n\u00e0o trong s\u1ed1 \u0111\u00f3 ch\u1ee9a c\u00e1c h\u00f3a ch\u1ea5t nguy hi\u1ec3m ti\u1ec1m t\u00e0ng n\u00e0y \u1edf m\u1ee9c \u0111\u00e1ng k\u1ec3 hay kh\u00f4ng.<\/p>\n
\u0110\u1ea7u ti\u00ean, nh\u00f3m nghi\u00ean c\u1ee9u t\u1ef1 l\u00e0m chocolate \u0111\u1ec3 x\u00e1c nh\u1eadn r\u1eb1ng carbonyl ch\u01b0a b\u00e3o h\u00f2a \u03b1,\u03b2 \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh trong qu\u00e1 tr\u00ecnh rang v\u00e0 sau khi th\u00eam b\u01a1 ca cao. Tuy nhi\u00ean, n\u1ed3ng \u0111\u1ed9 c\u1ee7a c\u00e1c ch\u1ea5t n\u00e0y qu\u00e1 th\u1ea5p \u0111\u1ec3 g\u00e2y ra b\u1ea5t k\u1ef3 m\u1ed1i lo ng\u1ea1i \u0111\u00e1ng k\u1ec3 n\u00e0o v\u1ec1 s\u1ee9c kh\u1ecfe.<\/p>\n
Ti\u1ebfp theo \u0111\u00f3, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u s\u00e0ng l\u1ecdc 22 m\u00f3n tr\u00e1ng mi\u1ec7ng c\u00f3 b\u00e1n tr\u00ean th\u1ecb tr\u01b0\u1eddng, bao g\u1ed3m b\u00e1nh qu\u1ebf, b\u00e1nh ng\u1ecdt, b\u00e1nh crepe v\u00e0 b\u00e1nh quy, c\u00f3 ho\u1eb7c kh\u00f4ng c\u00f3 chocolate. Ch\u00edn trong s\u1ed1 10 carbonyl \u0111\u01b0\u1ee3c ph\u00e2n t\u00edch c\u00f3 h\u00e0m l\u01b0\u1ee3ng th\u1eadm ch\u00ed c\u00f2n th\u1ea5p h\u01a1n trong c\u00e1c lo\u1ea1i b\u00e1nh n\u01b0\u1edbng n\u00e0y so v\u1edbi chocolate th\u1ee7 c\u00f4ng.<\/p>\n
(H\u00ecnh minh h\u1ecda: Joshua Bedford\/Unsplash)<\/p>\n
Tuy nhi\u00ean, m\u1ed9t carbonyl, furan-2(5H)-one, xu\u1ea5t hi\u1ec7n v\u1edbi n\u1ed3ng \u0111\u1ed9 cao h\u01a1n nhi\u1ec1u trong c\u00e1c m\u1eabu b\u00e1nh k\u1ebfp (crepe) v\u00e0 b\u00e1nh ng\u1ecdt. Furan-2(5H)-one t\u1ea1o ra h\u01b0\u01a1ng v\u1ecb b\u01a1 \u0111\u1eadm \u0111\u00e0 v\u00e0 t\u1eebng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m h\u01b0\u01a1ng li\u1ec7u trong c\u00e1c m\u00f3n n\u01b0\u1edbng. Tuy nhi\u00ean, ch\u1ea5t n\u00e0y hi\u1ec7n b\u1ecb c\u1ea5m \u1edf Li\u00ean Minh \u00c2u ch\u00e2u do t\u00e1c d\u1ee5ng g\u00e2y \u0111\u1ed9c gen \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh.<\/p>\n
T\u00e1c gi\u1ea3 \u0111\u1ea7u ti\u00ean c\u1ee7a nghi\u00ean c\u1ee9u \u2013 Alexandre Dusart n\u00f3i v\u1edbi Newsweek: \u201cPh\u00e1t hi\u1ec7n \u00a0c\u1ee7a ch\u00fang t\u00f4i cho th\u1ea5y Furan-2(5H)-one x\u1ea3y ra m\u1ed9t c\u00e1ch t\u1ef1 nhi\u00ean t\u1eeb c\u00e1c ph\u1ea3n \u1ee9ng nhi\u1ec7t trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t th\u1ef1c ph\u1ea9m. Tuy nhi\u00ean, s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a ch\u1ea5t n\u00e0y kh\u00f4ng li\u00ean quan \u0111\u1ebfn h\u01b0\u01a1ng li\u1ec7u (\u0111\u01b0\u1ee3c th\u00eam v\u00e0o c\u00f3 m\u1ee5c \u0111\u00edch) trong th\u1ef1c ph\u1ea9m ho\u1eb7c \u0111i k\u00e8m v\u1edbi chocolate.\u201d<\/p>\n
V\u1eady th\u00ec th\u1ef1c t\u1ebf c\u00f3 bao nhi\u00eau furan-2(5H)-one trong b\u00e1nh n\u01b0\u1edbng v\u00e0 m\u1ecdi ng\u01b0\u1eddi c\u00f3 n\u00ean lo l\u1eafng kh\u00f4ng?<\/p>\n
\u201cM\u1ed9t ph\u00e9p t\u00ednh nhanh l\u00e0 xem x\u00e9t m\u1ed9t l\u1ea7n ti\u00eau th\u1ee5 20g \u0111\u1ed3 \u0103n nh\u1eb9 ng\u1ecdt th\u01b0\u01a1ng m\u1ea1i c\u00f3 furan-2(5H)-one m\u1ee9c 4320 \u00b5g\/kg (m\u1ee9c cao nh\u1ea5t trong nghi\u00ean c\u1ee9u) d\u1eabn \u0111\u1ebfn vi\u1ec7c \u0103n v\u00e0o 86 \u00b5g furan-2( 5H)-one, \u0111i\u1ec1u n\u00e0y v\u01b0\u1ee3t qu\u00e1 ng\u01b0\u1ee1ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1eeba nh\u1eadn l\u00e0 g\u00e2y \u0111\u1ed9c t\u00ednh \u0111\u1ed1i v\u1edbi c\u00e1c ch\u1ea5t g\u00e2y \u0111\u1ed9c gen l\u00e0 0.15 \u00b5g\/m\u1ed9t ng\u01b0\u1eddi m\u1ed7i ng\u00e0y,\u201d Dusart cho bi\u1ebft.<\/p>\n
\u201cC\u1ea7n \u0111\u00e1nh gi\u00e1 to\u00e0n di\u1ec7n h\u01a1n \u0111\u1ec3 c\u00e1c c\u01a1 quan qu\u1ea3n l\u00fd r\u1ee7i ro th\u1ef1c hi\u1ec7n c\u00e1c h\u00e0nh \u0111\u1ed9ng li\u00ean quan \u0111\u1ec3 b\u1ea3o v\u1ec7 ng\u01b0\u1eddi ti\u00eau d\u00f9ng,\u201d Dusart n\u00f3i v\u00e0 chia s\u1ebb th\u00eam\u00a0r\u1eb1ng nh\u1eefng nghi\u00ean c\u1ee9u nh\u01b0 v\u1eady gi\u00fap m\u1ecdi ng\u01b0\u1eddi hi\u1ec3u l\u00e0m th\u1ebf n\u00e0o c\u00e1c h\u1ee3p ch\u1ea5t nguy hi\u1ec3m ti\u1ec1m t\u00e0ng n\u00e0y \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh trong th\u1ef1c ph\u1ea9m, v\u00e0 m\u1edf \u0111\u01b0\u1eddng cho c\u00e1c \u0111\u00e1nh gi\u00e1 trong t\u01b0\u01a1ng lai v\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p nh\u1eb1m h\u1ea1n ch\u1ebf c\u00e1c ch\u1ea5t g\u00e2y b\u1ec7nh c\u00f3 trong th\u1ef1c ph\u1ea9m, b\u1ea3o \u0111\u1ea3m an to\u00e0n th\u1ef1c ph\u1ea9m cho ng\u01b0\u1eddi d\u00f9ng.<\/p>\n
(theo Newsweek)<\/p>\n
The post H\u00f3a ch\u1ea5t t\u1ea1o h\u01b0\u01a1ng v\u1ecb trong b\u00e1nh ng\u1ecdt g\u00e2y t\u1ed5n h\u1ea1i DNA<\/a> appeared first on Saigon Nh\u1ecf<\/a>.<\/p>\n \u00a0<\/p>","protected":false},"excerpt":{"rendered":" M\u1ed9t nghi\u00ean c\u1ee9u m\u1edbi cho th\u1ea5y c\u00e1c h\u00f3a ch\u1ea5t g\u00e2y t\u1ed5n h\u1ea1i DNA c\u00f3 ch\u1ee9a trong nh\u1eefng m\u00f3n \u0103n ng\u1ecdt y\u00eau th\u00edch c\u1ee7a nhi\u1ec1u ng\u01b0\u1eddi. H\u01b0\u01a1ng v\u1ecb \u0111\u01b0\u1ee3c nhi\u1ec1u ng\u01b0\u1eddi m\u00ea v\u00e0 kh\u00f4ng th\u1ec3 nh\u1ea7m l\u1eabn, l\u00e0 m\u00f9i chocolate \u2013 k\u1ebft qu\u1ea3 c\u1ee7a m\u1ed9t lo\u1ea1i cocktail h\u00f3a h\u1ecdc c\u00f3 nhi\u1ec1u h\u01b0\u01a1ng v\u00e0 v\u1ecb kh\u00e1c nhau …<\/p>","protected":false},"author":0,"featured_media":51382,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[82,43],"tags":[],"class_list":["post-51381","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-society","category-health"],"_links":{"self":[{"href":"https:\/\/vietvalley.com\/en\/wp-json\/wp\/v2\/posts\/51381","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vietvalley.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vietvalley.com\/en\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/vietvalley.com\/en\/wp-json\/wp\/v2\/comments?post=51381"}],"version-history":[{"count":0,"href":"https:\/\/vietvalley.com\/en\/wp-json\/wp\/v2\/posts\/51381\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vietvalley.com\/en\/wp-json\/wp\/v2\/media\/51382"}],"wp:attachment":[{"href":"https:\/\/vietvalley.com\/en\/wp-json\/wp\/v2\/media?parent=51381"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vietvalley.com\/en\/wp-json\/wp\/v2\/categories?post=51381"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vietvalley.com\/en\/wp-json\/wp\/v2\/tags?post=51381"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}