{"id":53574,"date":"2024-12-16T11:10:08","date_gmt":"2024-12-16T11:10:08","guid":{"rendered":"https:\/\/matis.is\/?p=53574"},"modified":"2025-06-20T10:11:01","modified_gmt":"2025-06-20T10:11:01","slug":"kryddjurtir-eiginleikar-og-ahrif-a-geymsluthol-matvaela-herbs-properties-and-effects-on-shelf-life-of-foods","status":"publish","type":"post","link":"https:\/\/matis.is\/en\/skyrsla\/kryddjurtir-eiginleikar-og-ahrif-a-geymsluthol-matvaela-herbs-properties-and-effects-on-shelf-life-of-foods\/","title":{"rendered":"Kryddjurtir \u2013 Eiginleikar og \u00e1hrif \u00e1 geymslu\u00feol matv\u00e6la \/ Herbs \u2013 Properties and effects on shelf-life of foods"},"content":{"rendered":"<p>Markmi\u00f0 verkefnisins um kryddjurtir var a\u00f0 rannsaka \u00e1hrif kryddjurta \u00e1 geymslu\u00feol matv\u00e6la en mikill \u00e1hugi er \u00e1 hagn\u00fdtingu n\u00e1tt\u00farulegra hr\u00e1efna \u00ed sta\u00f0 rotvarefna til a\u00f0 n\u00e1 vi\u00f0unandi geymslu\u00feoli matv\u00e6la. \u00cd verkefninu var athyglinni fyrst og fremst beint a\u00f0 einni kryddjurt, s\u00edtr\u00f3numelissu. Lj\u00f3st er a\u00f0 s\u00edtr\u00f3numelissan b\u00fdr yfir andoxunarvirkni samkv\u00e6mt m\u00e6lingum \u00ed verkefninu. Andoxunarefnin gegna mikilv\u00e6gu hlutverki fyrir heilsu, \u00feau sporna gegn myndun ska\u00f0legra efna \u00ed l\u00edkamanum og draga \u00far \u00f3\u00e6skilegum breytingum.<\/p>\n\n\n\n<p>\u00cd verkefninu kom \u00ed lj\u00f3s a\u00f0 \u00fe\u00e6ttir \u00ed s\u00edtr\u00f3numelissu geta hamla\u00f0 fj\u00f6lgun \u00f6rvera og a\u00f0 s\u00edtr\u00f3numelissa er \u00fev\u00ed me\u00f0al m\u00f6gulegra hr\u00e1efna sem geta lengt geymslu\u00feol matv\u00e6la. \u00c1 \u00feessu stigi er \u00fe\u00f3 ekki t\u00edmab\u00e6rt a\u00f0 nota s\u00edtr\u00f3numelissu alfari\u00f0 \u00ed sta\u00f0 rotvarefna sem fram til \u00feessa hafa veri\u00f0 nau\u00f0synleg fyrir matv\u00e6la\u00f6ryggi. \u00deessa \u00fer\u00f3un \u00e6tti a\u00f0 taka \u00ed varf\u00e6rnum skrefum og fylgjast me\u00f0 \u00f6ryggi afur\u00f0anna. Hafa m\u00e1 \u00ed huga a\u00f0 notkun s\u00edtr\u00f3numelissu \u00ed matv\u00e6li treystir hollustu\u00edmynd varanna vegna andoxunarefna, v\u00edtam\u00edna og annarra n\u00e6ringarefna. \u00cd tilraunum kom \u00ed lj\u00f3s a\u00f0 s\u00edtr\u00f3numelissa hamla\u00f0i gegn vexti \u00f6rvera vi\u00f0 vissar a\u00f0st\u00e6\u00f0ur. Pressa\u00f0ur safi \u00far s\u00edtr\u00f3numelissu var til sko\u00f0unar og b\u00fd\u00f0ur hann upp \u00e1 hagn\u00fdtingu. Vi\u00f0 geymslu \u00e1 s\u00edtr\u00f3numelissu og fleiri kryddjurtum vi\u00f0 3-4 \u00b0C kom \u00ed lj\u00f3s a\u00f0 skemmdarferlar gengu h\u00e6gt fyrir sig.<br>_____<br>Lemon balm is a plant that belongs to the group of herbs. In this project the properties of lemon balm were studied to test if the plant could be used to prolong shelf life of processed foods and thus replace food additives.<\/p>\n\n\n\n<p>Considerable antioxidant activity was measured in lemon balm. It was also found that lemon balm can act as an antimicrobial agent to delay the growth of bacteria in fish balls and meat balls. The antimicrobial activity was dependent on the form of lemon balm. Lemon balm juice can be used in product development.<\/p>\n\n\n\n<p>Lemon balm added to processed foods will provide increased content of antioxidants and vitamins. The use of lemon balm to replace preservatives should only be used stepwise and safety of the food should be checked during changing of recipes.<\/p>","protected":false},"excerpt":{"rendered":"<p>Markmi\u00f0 verkefnisins um kryddjurtir var a\u00f0 rannsaka \u00e1hrif kryddjurta \u00e1 geymslu\u00feol matv\u00e6la en mikill \u00e1hugi er \u00e1 hagn\u00fdtingu n\u00e1tt\u00farulegra hr\u00e1efna [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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