Development of an Optimized Method to Obtain a Limonene-Rich Concentrate from the Discarded Lemon Peels

BALCI TORUN F., TOPRAKÇI YÜKSEL İ., DENİZ N. G., ORTABOY SEZER S., TORUN M., ŞAHİN SEVGİLİ S.

Chemistry and Biodiversity, cilt.20, sa.9, 2023 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 20 Sayı: 9
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1002/cbdv.202300767
  • Dergi Adı: Chemistry and Biodiversity
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Agricultural & Environmental Science Database, Aquatic Science & Fisheries Abstracts (ASFA), CAB Abstracts, Chemical Abstracts Core, EMBASE, MEDLINE, Veterinary Science Database
  • Anahtar Kelimeler: citrus, GC/MS, limonene, NMR, volatile compounds
  • Akdeniz Üniversitesi Adresli: Evet

Özet

In this study, lemon peels were used as volatile component source. Automatic solvent extraction has been used for the recovery of limonene rich citrus volatile extract for the first time. The process parameters (amount of raw material, immersion time and washing time) were analyzed to optimize the process by means of Box-Behnken design via response surface methodology. The optimum conditions were achieved by ~10 g fresh lemon peel, and ~15 min immersion time and ~13 min washing time. The difference between the actual (89.37 mg/g limonene) and predicted (90.85 mg/g limonene) results was satisfactory (<2 %). α-Terpinene, β-pinene, citral, ɣ-terpinene and linalool were determined as other major volatiles in the peel extract. FT-IR and 1H- and 13C-NMR spectroscopies were applied to verify the identified volatile compounds.