Kakovost plodov višnje (Prunus cerasus L.), tretiranih z raztopino hitozana pred shranjevanjem

Elena VASYLYSHYNA

Povzetek


Prispevek obravnava tržno ovrednotenje plodov višnje (Prunus cerasus L.) tretiranih z raztopino hitozana. Plodovi so bili tretirani z 0,5 % in 1 % raztopino hitozana in shranjeni pri 5 °C za 21 dni. Za ovrednotenje poličnega trajanja plodov so bili izmerjeni naslednji fizikalni in kemični parametri: izguba mase, zmanjšanje vsebnosti sladkorjev in askorbinske kisline ter zmanjšanje titracijske kislosti. Obdelava z raztopino hitozana je značilno zmanjšala izgubo mase, vsebnost sladkorjev, celokupnih kislin, askorbinske kisline in velikost dihanja. Obdelava s hitozanom je podaljšala polično trajanje višenj in izboljšala njihovo kakovost. Po 21-dneh shrambe se je masa višenj zmanjšala za 4,6 %, celoten pridelek pa na 85,5 %. To so potrdile naslednje fiziološke in kemične spremembe v plodovih med shranjevanjem: upad dihanja plodov, izguba sladkorjev, ki ni presegla 6,7 %, vsebnost kislin se je zmanjšala za 33 % in askorbinske kisline za 18 %. Ugotovljeno je bilo, da je imela obdelava plodov višenj z 1 % raztopino hitozana po obiranju pozitivni vpliv na njihovo tržno kakovost.

Ključne besede


plodovi višenj; shranjevanje; izguba mase; tržna kakovost; hitozan

Celotno besedilo:

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Literatura


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DOI: http://dx.doi.org/10.14720/aas.2018.111.3.11

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