{"id":312,"date":"2024-07-23T15:01:40","date_gmt":"2024-07-23T13:01:40","guid":{"rendered":"https:\/\/projektcydr.pl\/podrecznik\/?page_id=312"},"modified":"2024-07-24T10:10:18","modified_gmt":"2024-07-24T08:10:18","slug":"proba-skrobiowa","status":"publish","type":"page","link":"https:\/\/projektcydr.pl\/podrecznik\/proba-skrobiowa\/","title":{"rendered":"Pr\u00f3ba skrobiowa"},"content":{"rendered":"\n<p>Pr\u00f3ba skrobiowa bardzo obrazowo pokazuje czy w owocach pozosta\u0142y jeszcze nieprzetworzone zapasy skrobi, a je\u015bli tak to ile jeszcze jej jest. <\/p>\n\n\n\n<p>Pr\u00f3ba skrobiowa polega na przekrojeniu jab\u0142ka i posmarowaniu ods\u0142oni\u0119tego mi\u0105\u017cszu roztworem jodu. Jod, w przypadku obecno\u015bci skrobi, w przeci\u0105gu nieca\u0142ej minuty barwi si\u0119 na intensywny, niemal czarny kolor &#8211; podczas gdy w przeciwnym przypadku powoduje tylko nieznaczne br\u0105zowe zabarwienie. W efekcie, na posmarowanej jodem powierzchni pojawiaj\u0105 si\u0119 (lub nie) wyra\u017ane ciemne plamy, znacz\u0105ce miejsca gdzie wci\u0105\u017c znajduje si\u0119 skrobia. Brak czarnego koloru oznacza, \u017ce skrobi ju\u017c nie ma.<\/p>\n\n\n\n<p>Do wykonania pr\u00f3by skrobiowej doskonale nadaje si\u0119 popularny <strong>p\u0142yn Lugola<\/strong>, czyli wodny roztw\u00f3r jodu w jodku potasu. (Jod nie rozpuszcza si\u0119 w samej wodzie, st\u0105d konieczno\u015b\u0107 u\u017cycia jodku potasu, kt\u00f3ry pe\u0142ni tutaj rol\u0119 swego rodzaju rozpuszczalnika.) W zupe\u0142no\u015bci wystarczaj\u0105ce jest 1-procentowe st\u0119\u017cenie, czyli 1g jodu w 100ml. Je\u015bli masz w planie wykonanie jednej, lub tylko kilku pr\u00f3b, w niewielk\u0105 buteleczk\u0119 p\u0142ynu Lugola mo\u017cesz zaopatrzy\u0107 si\u0119 po prostu aptece. W przypadku wi\u0119kszego zapotrzebowania, zdecydowanie ekonomiczniej jest przygotowa\u0107 sobie taki roztw\u00f3r we w\u0142asnym zakresie.<\/p>\n\n\n\n<p>Przygotowanie p\u0142ynu Lugola jest bardzo proste. Jedyne co jest potrzebne to:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>jod krystaliczny<\/li>\n\n\n\n<li>jodek potasu<\/li>\n\n\n\n<li>woda destylowana \/ demineralizowana<\/li>\n<\/ul>\n\n\n\n<p>Do tego przydadz\u0105 si\u0119 nast\u0119puj\u0105ce drobiazgi:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ma\u0142a waga, z dok\u0142adno\u015bci\u0105 do pojedynczych gram\u00f3w<\/li>\n\n\n\n<li>zlewka z podzia\u0142k\u0105 umo\u017cliwiaj\u0105c\u0105 odczytanie obj\u0119to\u015bci<\/li>\n\n\n\n<li>co\u015b do mieszania, np. szklana bagietka<\/li>\n\n\n\n<li>butelka chroni\u0105ca przed \u015bwiat\u0142em (do przechowywania)<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image is-resized\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d4b43a3f02f&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d4b43a3f02f\" class=\"aligncenter wp-lightbox-container\"><img decoding=\"async\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/projektcydr.pl\/blog\/wp-content\/uploads\/2020\/05\/IMG_4271-1024x683.jpg\" alt=\"\" class=\"wp-image-3956\" style=\"width:512px\"\/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Powi\u0119ksz\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div>\n\n\n<p>Przygotowanie p\u0142ynu Lugola oraz przyk\u0142adowe proporcje na 100ml:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>odwa\u017c 2g jodku potasu<\/li>\n\n\n\n<li>wsyp do zlewki, uzupe\u0142nij wod\u0105 do 100ml<\/li>\n\n\n\n<li>wymieszaj a\u017c do pe\u0142nego rozpuszczenia<br>.<\/li>\n\n\n\n<li>odwa\u017c 1g jodu krystalicznego <\/li>\n\n\n\n<li>wsyp do przygotowanego roztworu jodku potasu<\/li>\n\n\n\n<li>wymieszaj a\u017c do pe\u0142nego rozpuszczenia <\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-gallery aligncenter has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d4b43a3f478&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d4b43a3f478\" class=\"wp-block-image size-large wp-lightbox-container\"><img decoding=\"async\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"3957\" src=\"https:\/\/projektcydr.pl\/blog\/wp-content\/uploads\/2020\/05\/IMG_4276-1024x683.jpg\" alt=\"\" class=\"wp-image-3957\"\/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Powi\u0119ksz\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d4b43a3f773&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d4b43a3f773\" class=\"wp-block-image size-large wp-lightbox-container\"><img decoding=\"async\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"3958\" src=\"https:\/\/projektcydr.pl\/blog\/wp-content\/uploads\/2020\/05\/IMG_4279-1024x683.jpg\" alt=\"\" class=\"wp-image-3958\"\/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Powi\u0119ksz\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d4b43a3fa99&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d4b43a3fa99\" class=\"wp-block-image size-large wp-lightbox-container\"><img decoding=\"async\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"3959\" src=\"https:\/\/projektcydr.pl\/blog\/wp-content\/uploads\/2020\/05\/IMG_4293-e1588507163276-683x1024.jpg\" alt=\"\" class=\"wp-image-3959\"\/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Powi\u0119ksz\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/figure>\n\n\n\n<p>P\u0142yn Lugola, jak ka\u017cdy roztw\u00f3r jodu, jest bardzo wra\u017cliwy na \u015bwiat\u0142o, wi\u0119c gdy sk\u0142adniki w ca\u0142o\u015bci si\u0119 rozpuszcz\u0105, przelej go do chroni\u0105cego przed \u015bwiat\u0142em pojemnika (lub zu\u017cyj od razu). Odpowiednio zabezpieczony mo\u017ce by\u0107 przechowywany ca\u0142y sezon.<\/p>\n\n\n\n<p>Poni\u017csze zdj\u0119cia przedstawiaj\u0105 wynik pr\u00f3by skrobiowej na jab\u0142kach z tego samego drzewa: w po\u0142owie sierpnia, tu\u017c po zerwaniu pod koniec wrze\u015bnia, oraz po miesi\u0119cznym wys\u0142adzaniu, pod koniec pa\u017adziernika:<\/p>\n\n\n\n<figure class=\"wp-block-gallery aligncenter has-nested-images columns-default is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d4b43a4022c&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d4b43a4022c\" class=\"wp-block-image size-large wp-lightbox-container\"><img decoding=\"async\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"4221\" src=\"https:\/\/projektcydr.pl\/blog\/wp-content\/uploads\/2020\/11\/IMG_4389-1024x683.jpg\" alt=\"\" class=\"wp-image-4221\"\/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Powi\u0119ksz\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d4b43a406a3&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d4b43a406a3\" class=\"wp-block-image size-large wp-lightbox-container\"><img decoding=\"async\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"4219\" src=\"https:\/\/projektcydr.pl\/blog\/wp-content\/uploads\/2020\/11\/IMG_4432-1024x683.jpg\" alt=\"\" class=\"wp-image-4219\"\/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Powi\u0119ksz\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d4b43a40948&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d4b43a40948\" class=\"wp-block-image size-large wp-lightbox-container\"><img decoding=\"async\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"4220\" src=\"https:\/\/projektcydr.pl\/blog\/wp-content\/uploads\/2020\/11\/IMG_4526-1024x683.jpg\" alt=\"\" class=\"wp-image-4220\"\/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Powi\u0119ksz\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/figure>\n\n\n\n<p>Brak jakichkolwiek czarnych miejsc \u015bwiadczy o tym, \u017ce w jab\u0142ku nie ma ju\u017c \u017cadnej skrobi. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pr\u00f3ba skrobiowa bardzo obrazowo pokazuje czy w owocach pozosta\u0142y jeszcze nieprzetworzone zapasy skrobi, a je\u015bli tak to ile jeszcze jej jest. Pr\u00f3ba skrobiowa polega na przekrojeniu jab\u0142ka i posmarowaniu ods\u0142oni\u0119tego mi\u0105\u017cszu roztworem jodu. Jod, w przypadku obecno\u015bci skrobi, w przeci\u0105gu nieca\u0142ej minuty barwi si\u0119 na intensywny, niemal czarny kolor &#8211; podczas gdy w przeciwnym przypadku &hellip; <a href=\"https:\/\/projektcydr.pl\/podrecznik\/proba-skrobiowa\/\" class=\"more-link\">Czytaj dalej<span class=\"screen-reader-text\"> \u201ePr\u00f3ba skrobiowa\u201d<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-312","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/projektcydr.pl\/podrecznik\/wp-json\/wp\/v2\/pages\/312","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/projektcydr.pl\/podrecznik\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/projektcydr.pl\/podrecznik\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/projektcydr.pl\/podrecznik\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/projektcydr.pl\/podrecznik\/wp-json\/wp\/v2\/comments?post=312"}],"version-history":[{"count":2,"href":"https:\/\/projektcydr.pl\/podrecznik\/wp-json\/wp\/v2\/pages\/312\/revisions"}],"predecessor-version":[{"id":355,"href":"https:\/\/projektcydr.pl\/podrecznik\/wp-json\/wp\/v2\/pages\/312\/revisions\/355"}],"wp:attachment":[{"href":"https:\/\/projektcydr.pl\/podrecznik\/wp-json\/wp\/v2\/media?parent=312"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}