Ni \u0161e povsem jasno, zakaj se sviloprejke hranijo prav z listi murv. Kar 70% proteinov, ki gradijo telo sviloprejk, \u017eu\u017eelke dobijo prav iz njih. Bela murva vsebuje beljakovine, ogljikove hidrate, kalcij, \u017eelezo, askorbinsko kislino, \u03b2-karoten, tiamin, folno kislino, vitamin D in razli\u010dne fenolne spojine. Fenoli (flavonoidi, fenolne kisline, antocianini, stilbeni, tanini, lignani, lignini) so pomembni tako pri rasti in razvoju rastlin, kot tudi pri obrambi pred oku\u017ebami in po\u0161kodbami. Spojine so pogosto prisotne v rastlinskih tkivih in so mo\u010dni antioksidanti. (Urbanek Krajnc s sod. 2014).
\nFenolne spojine kot antioksidanti rastlino \u0161\u010ditijo na razli\u010dne na\u010dine; neposredno reagirajo s prostimi radikali, jih odstranjujejo iz celic, razgrajujejo na manj reaktivne snovi, nadzorujejo aktivnost mnogih encimov.<\/p>\n
![](\"http:\/\/murve.um.si\/wp-content\/uploads\/2017\/02\/listi6.jpg\")
Listi bele murve. Foto: Tina Ugulin<\/p><\/div>\n
Glavne fenolne spojine v listih murv so razli\u010dne kisline: klorogena, galna, vanilina, kavna, kumarna, p-hidroksibenzojna, in \u0161e nekatere druge kisline. Bela murva vsebuje oksiresveratrol in 5,7-dihidroksikumarin 7-metil eter, ki ima antioksidativni potencial (Oh et al., 2002). Podobno kot pri beli, tudi \u010drna murva vsebuje primerljive snovi, s tem da si bili v \u010drni najdeni tudi karotenoidi (Radojkovi\u010d et al. 2012).
\nS tvorbo nekaterih fenolov se rastline odzivajo na objedanje. Rastlinski fenoli \u017ee v nizkih koncentracijah varujejo rastlino pred glivnimi oku\u017ebami in objedanjem \u017eu\u017eelk.
\nV okviru projekta se osredoto\u010damo predvsem na dolo\u010danje prisotnosti tiolov z majhno molekulsko maso (cistein, glutation) v listih murv in na njihov pomen v askorbatno-glutationovem ciklu, presnavljanjem fenolov in prehrambeno vrednostjo za sviloprejke.<\/p>\n
\u017dveplove aminokisline, na primer glutation (GSH), imajo pomembne naloge tako pri rastlinah kot tudi pri \u017eivali, kot je na primer obramba pred oksidativnemu stresu, pa tudi pred te\u017ekimi kovinamu, herbicidi in ksenobiotiki. Je glavna spojina, ki regulira aktiviranje obrambnih genov in je povezana z vzpostavljanjem z \u017eveplom spro\u017eene rezistence (SIR) (Noctor & Foyer 2011).<\/p>\n","protected":false},"excerpt":{"rendered":"
Ni \u0161e povsem jasno, zakaj se sviloprejke hranijo prav z listi murv. Kar 70% proteinov, ki gradijo telo sviloprejk, \u017eu\u017eelke dobijo prav iz njih. Bela murva vsebuje beljakovine, ogljikove hidrate, kalcij, \u017eelezo, askorbinsko kislino, \u03b2-karoten, tiamin, folno kislino, vitamin D in razli\u010dne fenolne spojine. Fenoli (flavonoidi, fenolne kisline, antocianini, stilbeni, tanini, lignani, lignini) so pomembniContinue reading →<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"ngg_post_thumbnail":0,"footnotes":""},"class_list":["post-66","page","type-page","status-publish","hentry","no-thumb"],"yoast_head":"\n
Hranilna vrednost listov - murve.um.si<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.murve.um.si\/?page_id=66&lang=sl\" \/>\n<meta property=\"og:locale\" content=\"sl_SI\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hranilna vrednost listov - murve.um.si\" \/>\n<meta property=\"og:description\" content=\"Ni \u0161e povsem jasno, zakaj se sviloprejke hranijo prav z listi murv. Kar 70% proteinov, ki gradijo telo sviloprejk, \u017eu\u017eelke dobijo prav iz njih. Bela murva vsebuje beljakovine, ogljikove hidrate, kalcij, \u017eelezo, askorbinsko kislino, \u03b2-karoten, tiamin, folno kislino, vitamin D in razli\u010dne fenolne spojine. Fenoli (flavonoidi, fenolne kisline, antocianini, stilbeni, tanini, lignani, lignini) so pomembniContinue reading →\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.murve.um.si\/?page_id=66&lang=sl\" \/>\n<meta property=\"og:site_name\" content=\"murve.um.si\" \/>\n<meta property=\"article:modified_time\" content=\"2022-11-24T09:56:38+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/murve.um.si\/wp-content\/uploads\/2017\/02\/listi6.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minuti\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.murve.um.si\\\/?page_id=66&lang=sl\",\"url\":\"https:\\\/\\\/www.murve.um.si\\\/?page_id=66&lang=sl\",\"name\":\"Hranilna vrednost listov - murve.um.si\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.murve.um.si\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.murve.um.si\\\/?page_id=66&lang=sl#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.murve.um.si\\\/?page_id=66&lang=sl#primaryimage\"},\"thumbnailUrl\":\"http:\\\/\\\/murve.um.si\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/listi6.jpg\",\"datePublished\":\"2017-02-28T21:34:04+00:00\",\"dateModified\":\"2022-11-24T09:56:38+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.murve.um.si\\\/?page_id=66&lang=sl#breadcrumb\"},\"inLanguage\":\"sl-SI\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.murve.um.si\\\/?page_id=66&lang=sl\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"sl-SI\",\"@id\":\"https:\\\/\\\/www.murve.um.si\\\/?page_id=66&lang=sl#primaryimage\",\"url\":\"http:\\\/\\\/murve.um.si\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/listi6.jpg\",\"contentUrl\":\"http:\\\/\\\/murve.um.si\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/listi6.jpg\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.murve.um.si\\\/?page_id=66&lang=sl#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"http:\\\/\\\/www.murve.um.si\\\/?page_id=27&lang=en\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Hranilna vrednost listov\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.murve.um.si\\\/#website\",\"url\":\"https:\\\/\\\/www.murve.um.si\\\/\",\"name\":\"murve.um.si\",\"description\":\"Projekt murve\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.murve.um.si\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.murve.um.si\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"sl-SI\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.murve.um.si\\\/#organization\",\"name\":\"murve.um.si\",\"url\":\"https:\\\/\\\/www.murve.um.si\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"sl-SI\",\"@id\":\"https:\\\/\\\/www.murve.um.si\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.murve.um.si\\\/wp-content\\\/uploads\\\/2017\\\/08\\\/logo-pop2.jpg\",\"contentUrl\":\"https:\\\/\\\/www.murve.um.si\\\/wp-content\\\/uploads\\\/2017\\\/08\\\/logo-pop2.jpg\",\"width\":3281,\"height\":3593,\"caption\":\"murve.um.si\"},\"image\":{\"@id\":\"https:\\\/\\\/www.murve.um.si\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Hranilna vrednost listov - murve.um.si","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.murve.um.si\/?page_id=66&lang=sl","og_locale":"sl_SI","og_type":"article","og_title":"Hranilna vrednost listov - murve.um.si","og_description":"Ni \u0161e povsem jasno, zakaj se sviloprejke hranijo prav z listi murv. Kar 70% proteinov, ki gradijo telo sviloprejk, \u017eu\u017eelke dobijo prav iz njih. Bela murva vsebuje beljakovine, ogljikove hidrate, kalcij, \u017eelezo, askorbinsko kislino, \u03b2-karoten, tiamin, folno kislino, vitamin D in razli\u010dne fenolne spojine. Fenoli (flavonoidi, fenolne kisline, antocianini, stilbeni, tanini, lignani, lignini) so pomembniContinue reading →","og_url":"https:\/\/www.murve.um.si\/?page_id=66&lang=sl","og_site_name":"murve.um.si","article_modified_time":"2022-11-24T09:56:38+00:00","og_image":[{"url":"http:\/\/murve.um.si\/wp-content\/uploads\/2017\/02\/listi6.jpg","type":"","width":"","height":""}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"2 minuti"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.murve.um.si\/?page_id=66&lang=sl","url":"https:\/\/www.murve.um.si\/?page_id=66&lang=sl","name":"Hranilna vrednost listov - murve.um.si","isPartOf":{"@id":"https:\/\/www.murve.um.si\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.murve.um.si\/?page_id=66&lang=sl#primaryimage"},"image":{"@id":"https:\/\/www.murve.um.si\/?page_id=66&lang=sl#primaryimage"},"thumbnailUrl":"http:\/\/murve.um.si\/wp-content\/uploads\/2017\/02\/listi6.jpg","datePublished":"2017-02-28T21:34:04+00:00","dateModified":"2022-11-24T09:56:38+00:00","breadcrumb":{"@id":"https:\/\/www.murve.um.si\/?page_id=66&lang=sl#breadcrumb"},"inLanguage":"sl-SI","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.murve.um.si\/?page_id=66&lang=sl"]}]},{"@type":"ImageObject","inLanguage":"sl-SI","@id":"https:\/\/www.murve.um.si\/?page_id=66&lang=sl#primaryimage","url":"http:\/\/murve.um.si\/wp-content\/uploads\/2017\/02\/listi6.jpg","contentUrl":"http:\/\/murve.um.si\/wp-content\/uploads\/2017\/02\/listi6.jpg"},{"@type":"BreadcrumbList","@id":"https:\/\/www.murve.um.si\/?page_id=66&lang=sl#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"http:\/\/www.murve.um.si\/?page_id=27&lang=en"},{"@type":"ListItem","position":2,"name":"Hranilna vrednost listov"}]},{"@type":"WebSite","@id":"https:\/\/www.murve.um.si\/#website","url":"https:\/\/www.murve.um.si\/","name":"murve.um.si","description":"Projekt murve","publisher":{"@id":"https:\/\/www.murve.um.si\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.murve.um.si\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"sl-SI"},{"@type":"Organization","@id":"https:\/\/www.murve.um.si\/#organization","name":"murve.um.si","url":"https:\/\/www.murve.um.si\/","logo":{"@type":"ImageObject","inLanguage":"sl-SI","@id":"https:\/\/www.murve.um.si\/#\/schema\/logo\/image\/","url":"https:\/\/www.murve.um.si\/wp-content\/uploads\/2017\/08\/logo-pop2.jpg","contentUrl":"https:\/\/www.murve.um.si\/wp-content\/uploads\/2017\/08\/logo-pop2.jpg","width":3281,"height":3593,"caption":"murve.um.si"},"image":{"@id":"https:\/\/www.murve.um.si\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/www.murve.um.si\/index.php?rest_route=\/wp\/v2\/pages\/66","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.murve.um.si\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.murve.um.si\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.murve.um.si\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.murve.um.si\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=66"}],"version-history":[{"count":4,"href":"https:\/\/www.murve.um.si\/index.php?rest_route=\/wp\/v2\/pages\/66\/revisions"}],"predecessor-version":[{"id":1788,"href":"https:\/\/www.murve.um.si\/index.php?rest_route=\/wp\/v2\/pages\/66\/revisions\/1788"}],"wp:attachment":[{"href":"https:\/\/www.murve.um.si\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=66"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}