Bio-rafiniranje sačme pamučnog semena iz naftne industrije za izolaciju ekološki prihvatljivog prirodnog proteinskog polimera
DOI:
https://doi.org/10.5937/zasmat2303300FKljučne reči:
brašno od pamučnog semena protein semena pamuka proteinsko brašno semena pamuka, ekstrakcija, karakteristike proteina, precipitacijaApstrakt
Sačma od semena pamuka (CSM) je nusproizvod naftne industrije. Globulini (familije rastvorljivih u soli, vicilina i legumina) su glavni dominantni proteini za skladištenje u semenu pamuka i čine 60-70% proteina semena. Međutim, oni su neprikladni za ljudsku ishranu zbog sadržaja gosipola. U ovom radu, protein je ekstrahovan iz odmašćenog pamučnog brašna alkalnim rastvorom i ispitivano je njegovo taloženje na različitim pH vrednostima. Sirovi protein je kvantifikovan korišćenjem standardne mikro-Kjeldahlove metode azota. Obavljen je centralni ekspert za dizajn kompozita i proučavan je uticaj varijabli na ekstrakciju proteina, odnosno koncentracije rastvarača za ekstrakciju, temperature i vremena. Optimalna šema ekstrakcije je dobijena na 0,1M NaOH sa odnosom materijala i tečnosti (MLR) 1:20 na pH 12 korišćenjem temperature od 67℃ i vremena od 90 min. Pod ovim uslovima, odgovor daje procenat rastvorljivosti brašna od 80,52% i procenat čistoće proteina 80,40%. Pored toga, utvrdena je rastvorljivost proteina i kapacitet apsorpcije vode, a hemijska struktura proteina je okarakterisana pomoću infracrvene spektroskopije Furijeove transformacije.Reference
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