Ramanova spektroskopija kao odgovarajuća metoda za hemijsku diskriminaciju uzoraka semena ulja divlje konoplje

  • Ilinka Pećinar University of Belgrade, Faculty of Agriculture
  • Dragana Rančić Univerzitet u Beogradu, Poljoprivredni fakultet, Nemanjina 6, 11080 Beograd, Zemun
  • Bojana Špirović Trifunović Univerzitet u Beogradu, Poljoprivredni fakultet, Nemanjina 6, 11080 Beograd, Zemun
  • Dragana Božić Univerzitet u Beogradu, Poljoprivredni fakultet, Nemanjina 6, 11080 Beograd, Zemun
Ključne reči: nezasićene, zasićene masne kiseline, vibraciona spektroskopija, PCA

Sažetak


Divlja konoplja (Cannabis sativa L. ssp. sativa var. spontanea Vavilov) je cenjena biljna vrsta, koristi se u proizvodnji boja na bazi ulja, kao hidratantno sredstvo u kremama, za kuvanje, ishranu životinja i ptica. Cilj ovog rada je bio procena fitohemijskog sastava divlje konoplje uzgajane na dve različite lokacije u Srbiji, primenom Ramanove mikrospektroskopije u kombinaciji sa multivarijantnom analizom podataka. Između analiziranih uzoraka ustanovljena je značajna razlika u pogledu hemijskog profila. Pikovi visokog intenziteta u Ramanovim spektrima uzoraka semena divlje konoplje ukazuju na dominantnost nezasićenih (pikovi na pozicijama 1657 i 1268 cm-1), zatim zasićenih masnih kiselina (1443, 1306 i 1084 cm-1) i estara masnih kiselina (1745 cm-1). Relativni intenziteti ovih traka i rezultati analize glavnih komponenata (PCA)  ukazuju na to da se ulje iz semena divlje konoplje prikupljeno sa različitih lokaliteta razlikuje u sadržaju nezasićenih i zasićenih masnih kiselina što se uočava na osnovu razlika u relativnim intenzitetima traka na pozicijama 1657 i 1268 cm−1 .

Reference

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Objavljeno
2025/01/02
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