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\u0110\u1ed9ng v\u1eadt kh\u00f4ng th\u1ef1c s\u1ef1 c\u00f3 nhu c\u1ea7u v\u1ec1 protein kh\u1ea9u ph\u1ea7n, m\u00e0 h\u01a1n th\u1ebf, c\u00f3 nhu c\u1ea7u v\u1ec1 axit amin.<\/p>\n
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C\u00e1c \u2018protein l\u00fd t\u01b0\u1edfng n\u00e0y\u2019 s\u1ebd cung c\u1ea5p cho h\u1ec7 th\u1ed1ng ti\u00eau h\u00f3a c\u1ee7a b\u00f2 s\u1eefa nhu c\u1ea7u c\u00e1c axit amin thi\u1ebft y\u1ebfu (x\u00e2y d\u1ef1ng c\u00e1c kh\u1ed1i protein). C\u00e1c protein \u0111\u01b0a \u0111\u1ebfn \u0111\u01b0\u1eddng ru\u1ed9t l\u00e0 do s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a c\u00e1c axit amin t\u1eeb s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a vi sinh v\u1eadt \u1edf d\u1ea1 c\u1ecf, v\u00e0 protein t\u1eeb th\u1ee9c \u0103n v\u00e0 v\u1eabn ch\u01b0a \u0111\u01b0\u1ee3c ti\u00eau h\u00f3a.<\/p>\n
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Protein vi sinh v\u1eadt c\u00f3 t\u1ef7 l\u1ec7 axit amin thi\u1ebft y\u1ebfu th\u00edch h\u1ee3p, do \u0111\u00f3 vi\u1ec7c t\u1ed1i \u0111a h\u00f3a protein vi sinh v\u1eadt l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p r\u1ea5t hi\u1ec7u qu\u1ea3 \u0111\u00e1p \u1ee9ng c\u00e1c nhu c\u1ea7u protein c\u1ee7a b\u00f2. Hai axit amin h\u1ea1n ch\u1ebf nh\u1ea5t l\u00e0 methionin v\u00e0 lysine, v\u00ec ch\u00fang thi\u1ebfu \u0111\u01b0\u1ee3c cung c\u1ea5p, v\u00e0 \u0111\u00e3 c\u00f3 m\u1ed9t n\u01a1i ph\u00e1t tri\u1ec3n cung c\u1ea5p ngu\u1ed3n hai axit amin n\u00e0y \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 t\u1ea1i d\u1ea1 c\u1ecf . B\u1eafp h\u1ea1t c\u0169ng l\u00e0 m\u1ed9t ngu\u1ed3n b\u1eaft c\u1ea7u methionine t\u1ed1t v\u00e0 \u0111\u1eadu n\u00e0nh \u2018 \u0111\u00e3 x\u1eed l\u00fd \u2018 c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t ngu\u1ed3n lysine.<\/p>\n
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L\u01b0\u1ee3ng vi sinh v\u1eadt trong d\u1ea1 c\u1ecf c\u0169ng c\u00f3 th\u1ec3 t\u1eadn d\u1ee5ng c\u00e1c ngu\u1ed3n nit\u01a1 kh\u00f4ng protein (NPN) nh\u01b0 ur\u00ea v\u00e0 chuy\u1ec3n \u0111\u1ed5i ch\u00fang th\u00e0nh protein vi sinh v\u1eadt. Tuy nhi\u00ean, \u0111\u1ec3 s\u1eed d\u1ee5ng \u0111\u1ea7y \u0111\u1ee7 NPN, ph\u1ea3i c\u00f3 m\u1ed9t ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng c\u00f3 s\u1eb5n \u0111\u1ec3 k\u00edch th\u00edch s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a vi sinh v\u1eadt v\u00e0 c\u0169ng l\u00e0 \u0111\u1ec3 cung c\u1ea5p carbon c\u1ea7n thi\u1ebft cho s\u1ef1 s\u1ea3n xu\u1ea5t axit amin. Nhi\u1ec1u h\u1ec7 th\u1ed1ng m\u00f4 h\u00ecnh m\u00e1y t\u00ednh c\u00f3 s\u1eb5n \u0111\u1ec3 gi\u00fap c\u00e1c nh\u00e0 dinh d\u01b0\u1ee1ng t\u1ed1i \u0111a h\u00f3a s\u1ea3n xu\u1ea5t protein vi sinh v\u1eadt.<\/p>\n
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N\u0103ng l\u01b0\u1ee3ng t\u1eeb c\u1ecf<\/strong><\/p>\n <\/p>\n C\u00e1c enzyme c\u1ee7a lo\u00e0i \u0111\u1ed9ng v\u1eadt c\u00f3 v\u00fa kh\u00f4ng th\u1ec3 ti\u00eau h\u00f3a \u0111\u01b0\u1ee3c ch\u1ea5t x\u01a1, nh\u01b0ng vi khu\u1ea9n d\u1ea1 c\u1ecf th\u00ec c\u00f3 th\u1ec3, s\u1ea3n xu\u1ea5t ra VFAs (c\u00e1c axit b\u00e9o bay h\u01a1i) l\u00e0 s\u1ea3n ph\u1ea9m ph\u1ee5, v\u00e0 ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m n\u0103ng l\u01b0\u1ee3ng cho b\u00f2.<\/p>\n <\/p>\n Axit axetic (axetat) v\u00e0 ax\u00edt propionic (propionate) l\u00e0 hai VFAs ph\u1ed5 bi\u1ebfn v\u00e0 quan tr\u1ecdng nh\u1ea5t. Axit axetic l\u00e0 m\u1ed9t lo\u1ea1i \u0111\u01b0\u1eddng ch\u1ee9a hai carbon li\u00ean k\u1ebft ch\u1eb7t ch\u1ebd v\u1edbi s\u1ef1 s\u1ea3n xu\u1ea5t ch\u1ea5t b\u00e9o s\u1eefa. S\u1ef1 s\u1ea3n xu\u1ea5t axetat th\u1ea5p h\u01a1n trong nh\u1eefng kh\u1ea9u ph\u1ea7n c\u00f3 ch\u1ea5t x\u01a1 h\u1ea1n ch\u1ebf, ho\u1eb7c ch\u1ea5t x\u01a1 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng k\u00e9m. B\u00f2 \u1ee3 h\u01a1i v\u00e0 nhai l\u1ea1i th\u1ee9c \u0103n c\u1ee7a m\u00ecnh nh\u01b0 l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a qu\u00e1 tr\u00ecnh nhai l\u1ea1i, t\u1ea1o kh\u1ea3 n\u0103ng \u0111\u1ec7m s\u00e2u h\u01a1n v\u1edbi n\u01b0\u1edbc b\u1ecdt c\u1ee7a n\u00f3.<\/p>\n <\/p>\n S\u1ef1 c\u00e2n b\u1eb1ng pH n\u00e0y l\u00e0 c\u1ea7n thi\u1ebft cho qu\u00e1 tr\u00ecnh l\u00ean men d\u1ea1 c\u1ecf kh\u1ecfe m\u1ea1nh v\u00e0 s\u1ef1 s\u1ea3n xu\u1ea5t VFA ti\u1ebfp theo, v\u00e0 \u0111\u00f3 l\u00e0 m\u1ed9t trong nh\u1eefng l\u00fd do m\u00e0 ch\u1ea5t b\u00e9o s\u1eefa k\u00e9m li\u00ean k\u1ebft v\u1edbi c\u00e1c kh\u1ea9u ph\u1ea7n thi\u1ebfu ch\u1ea5t x\u01a1 t\u1ed5ng s\u1ed1 ho\u1eb7c ch\u1ee9a ch\u1ea5t x\u01a1 hi\u1ec7u qu\u1ea3 m\u00e0 c\u00f3 k\u00edch th\u01b0\u1edbc kh\u00f4ng th\u00edch h\u1ee3p \u0111\u1ec3 k\u00edch th\u00edch s\u1ef1 nhai l\u1ea1i.<\/p>\n <\/p>\n C\u00e1c vi khu\u1ea9n d\u1ea1 c\u1ecf s\u1eed d\u1ee5ng tinh b\u1ed9t, do \u0111\u00f3 b\u00f2 kh\u00f4ng c\u1ea7n ph\u1ea3i \u0111\u01b0\u1ee3c cho \u0103n \u0111\u1ee7 carbohydrate ti\u00eau h\u00f3a \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u c\u1ee7a m\u00ecnh. Gan ch\u1ecbu tr\u00e1ch nhi\u1ec7m s\u1ea3n xu\u1ea5t glucose t\u1eeb c\u00e1c ngu\u1ed3n kh\u00f4ng ph\u1ea3i carbohydrate v\u00e0 m\u1ed9t ngu\u1ed3n nh\u01b0 v\u1eady l\u00e0 do s\u1ef1 kh\u1eed amin v\u00e0 s\u1eed d\u1ee5ng cacbon t\u1eeb m\u1ed9t s\u1ed1 axit amin nh\u1ea5t \u0111\u1ecbnh. May m\u1eafn thay, propionate c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t glucose, v\u00e0 ph\u1ee5 gia th\u1ee9c \u0103n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf nh\u1eefng n\u01a1i m\u00e0 ph\u00e1p l\u00fd cho ph\u00e9p.<\/p>\n Monensin<\/strong><\/p>\n <\/p>\n C\u00e1c monensin ionophore c\u00f3 th\u1ec3 l\u00e0m thay \u0111\u1ed5i t\u1ef7 l\u1ec7 VFAs \u1edf d\u1ea1 c\u1ecf, t\u0103ng s\u1ea3n xu\u1ea5t propionate \u0111\u1ec3 h\u1ed7 tr\u1ee3 vi\u1ec7c s\u1ea3n xu\u1ea5t glucose d\u00f9ng t\u1ea1o n\u0103ng l\u01b0\u1ee3ng v\u00e0 t\u1ed5ng h\u1ee3p lactose. M\u1ee9c lactose trong s\u1eefa \u1ed5n \u0111\u1ecbnh h\u01a1n so v\u1edbi m\u1ee9c ch\u1ea5t b\u00e9o s\u1eefa ho\u1eb7c protein. S\u1ef1 thi\u1ebfu h\u1ee5t glucose c\u00f3 th\u1ec3 bi\u1ec3u hi\u1ec7n \u1edf s\u1ef1 s\u1ea3n xu\u1ea5t s\u1eefa b\u1ecb gi\u1ea3m v\u00ec lactose gi\u00fap t\u0103ng l\u01b0\u1ee3ng s\u1eefa b\u1eb1ng c\u00e1ch \u0111i\u1ec1u ch\u1ec9nh l\u01b0\u1ee3ng n\u01b0\u1edbc \u0111\u01b0\u1ee3c r\u00fat ra v\u00e0o c\u00e1c t\u1ebf b\u00e0o ti\u1ebft \u1edf tuy\u1ebfn v\u00fa.<\/p>\n <\/p>\n H\u1ee3p ch\u1ea5t \u0111\u1ec7m<\/strong><\/p>\n <\/p>\n Th\u1ee9c \u0103n ng\u0169 c\u1ed1c c\u00f3 th\u1ec3 \u0111em \u0111\u1ebfn s\u1ef1 s\u1ea3n xu\u1ea5t qu\u00e1 m\u1ee9c VFAs v\u00e0 s\u1ef1 s\u1ea3n xu\u1ea5t axit lactic, c\u00f3 th\u1ec3 g\u00e2y ra ch\u1ee9ng nhi\u1ec5m toan (ch\u1ee9ng nhi\u1ec5m axit) c\u1eadn l\u00e2m s\u00e0ng ho\u1eb7c l\u00e2m s\u00e0ng, c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m s\u1ef1 to\u00e0n v\u1eb9n c\u1ee7a th\u00e0nh d\u1ea1 c\u1ecf v\u00e0 g\u00e2y \u00e1p xe gan.<\/p>\n <\/p>\n C\u00f3 th\u1ec3 b\u00f9 l\u1ea1i nh\u1eefng \u1ea3nh h\u01b0\u1edfng c\u1ee7a th\u1ee9c \u0103n ng\u0169 c\u1ed1c b\u1eb1ng c\u00e1c h\u1ee3p ch\u1ea5t \u0111\u1ec7m kh\u00e1c nhau, gi\u00fap t\u0103ng pH.<\/p>\n <\/p>\n S\u1ea3n ph\u1ea9m n\u1ea5m men<\/strong><\/p>\n <\/p>\n N\u1ea5m men s\u1ed1ng, n\u1ea5m men t\u1ef1 ph\u00e2n v\u00e0 c\u00e1c m\u1ebb c\u1ea5y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 c\u1ea3i thi\u1ec7n s\u1ef1 l\u00ean men d\u1ea1 c\u1ecf, t\u0103ng ti\u00eau h\u00f3a ch\u1ea5t x\u01a1 v\u00e0 ch\u1ea5t h\u1eefu c\u01a1 trong kh\u1ea9u ph\u1ea7n. C\u00e1c s\u1ea3n ph\u1ea9m n\u1ea5m men c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng theo nh\u1eefng c\u00e1ch kh\u00e1c nhau, cho d\u00f9 b\u1eb1ng c\u00e1ch c\u1ea3i thi\u1ec7n qu\u00e1 tr\u00ecnh l\u00ean men b\u1eb1ng s\u1ef1 t\u1ea1o ra m\u1ed9t m\u00f4i tr\u01b0\u1eddng k\u1ef5 kh\u00ed h\u01a1n, ho\u1eb7c cung c\u1ea5p c\u00e1c ch\u1ea5t dinh d\u01b0\u1ee1ng c\u1ea7n thi\u1ebft \u0111\u1ec3 k\u00edch th\u00edch s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a vi khu\u1ea9n.<\/p>\n <\/p>\n S\u1ea3n ph\u1ea9m gi\u1ea3m thi\u1ec3u \u0111\u1ed9c t\u1ed1<\/strong><\/p>\n <\/p>\n Vi khu\u1ea9n d\u1ea1 c\u1ecf c\u00f3 th\u1ec3 ph\u00e1 v\u1ee1 nhi\u1ec1u lo\u1ea1i \u0111\u1ed9c t\u1ed1 c\u00e2y tr\u1ed3ng v\u00e0 \u0111\u1ed9c t\u1ed1 n\u1ea5m m\u1ed1c, nh\u01b0ng m\u1ed9t s\u1ed1 \u0111\u1ed9c t\u1ed1 c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m s\u1ef1 s\u1ea3n xu\u1ea5t vi sinh v\u1eadt, v\u00e0 sau \u0111\u00f3 gi\u1ea3m s\u1ea3n xu\u1ea5t c\u1ee7a th\u00fa. C\u00e1c nh\u00e0 ch\u0103n nu\u00f4i n\u00ean tr\u00e1nh cho \u0103n c\u00e1c lo\u1ea1i th\u1ef1c ph\u1ea9m b\u1ecb nhi\u1ec5m \u0111\u1ed1i v\u1edbi b\u00f2 n\u0103ng su\u1ea5t cao nh\u1ea1y c\u1ea3m v\u1edbi nhi\u1ec1u r\u1ed1i lo\u1ea1n, v\u00e0 xem x\u00e9t c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh gi\u1ea3m nh\u1eb9 \u0111\u1ec3 t\u1ed1i thi\u1ec3u h\u00f3a \u1ea3nh h\u01b0\u1edfng c\u1ee7a c\u00e1c \u0111\u1ed9c t\u1ed1. M\u1ed9t d\u1ea1 c\u1ecf hi\u1ec7u qu\u1ea3 cho ph\u00e9p b\u00f2 s\u1eed d\u1ee5ng c\u1ecf v\u00e0 t\u1ea1o ra th\u1ef1c ph\u1ea9m cho ng\u01b0\u1eddi ti\u00eau d\u00f9ng, v\u00e0 c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh cho \u0103n t\u1ed1i \u0111a h\u00f3a s\u1ef1 l\u00ean men d\u1ea1 c\u1ecf b\u1eb1ng c\u00e1ch t\u1ea1o ra m\u1ed9t m\u00f4i tr\u01b0\u1eddng l\u00e0nh m\u1ea1nh cho s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a vi khu\u1ea9n s\u1ebd gi\u00fap t\u1ed1i \u0111a h\u00f3a s\u1ea3n xu\u1ea5t c\u1ee7a th\u00fa.<\/p>\n <\/p>\n Theo International Dairy Topics<\/p>\n","protected":false},"excerpt":{"rendered":" L\u1ee3i \u00edch ch\u00ednh c\u1ee7a b\u00f2 s\u1eefa l\u00e0 \u1edf ch\u1ed7 s\u1eed d\u1ee5ng c\u1ecf t\u01b0\u01a1i c\u1ee7a ch\u00fang, n\u01a1i c\u00f3 \u0111\u1ea5t kh\u00f4ng th\u00edch h\u1ee3p cho c\u00e1c lo\u1ea1i c\u00e2y tr\u1ed3ng h\u1ea1t c\u1ed1c truy\u1ec1n th\u1ed1ng. M\u1ed1i quan h\u1ec7 c\u1ed9ng sinh v\u1edbi s\u1ed1 l\u01b0\u1ee3ng vi khu\u1ea9n … Read More<\/a><\/p>\n","protected":false},"author":722,"featured_media":8066,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"sfsi_plus_gutenberg_text_before_share":"","sfsi_plus_gutenberg_show_text_before_share":"","sfsi_plus_gutenberg_icon_type":"","sfsi_plus_gutenberg_icon_alignemt":"","sfsi_plus_gutenburg_max_per_row":"","footnotes":""},"categories":[27,89],"tags":[869,1112,125],"class_list":["post-8065","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-industry-news","tag-axit-amin","tag-len-men-da-co","tag-thuoc-thu-y"],"_links":{"self":[{"href":"https:\/\/apanano.com\/en\/wp-json\/wp\/v2\/posts\/8065","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/apanano.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/apanano.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/apanano.com\/en\/wp-json\/wp\/v2\/users\/722"}],"replies":[{"embeddable":true,"href":"https:\/\/apanano.com\/en\/wp-json\/wp\/v2\/comments?post=8065"}],"version-history":[{"count":1,"href":"https:\/\/apanano.com\/en\/wp-json\/wp\/v2\/posts\/8065\/revisions"}],"predecessor-version":[{"id":8067,"href":"https:\/\/apanano.com\/en\/wp-json\/wp\/v2\/posts\/8065\/revisions\/8067"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/apanano.com\/en\/wp-json\/wp\/v2\/media\/8066"}],"wp:attachment":[{"href":"https:\/\/apanano.com\/en\/wp-json\/wp\/v2\/media?parent=8065"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/apanano.com\/en\/wp-json\/wp\/v2\/categories?post=8065"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/apanano.com\/en\/wp-json\/wp\/v2\/tags?post=8065"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}