Microwave-assisted hydrodistillation of essential oil from rosemary

KARAKAYA S., EL S. N., KARAGÖZLÜ N., ŞAHİN S., Sumnu G., Bayramoglu B.

JOURNAL OF FOOD SCIENCE AND TECHNOLOGY-MYSORE, cilt.51, sa.6, ss.1056-1065, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 51 Sayı: 6
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1007/s13197-011-0610-y
  • Dergi Adı: JOURNAL OF FOOD SCIENCE AND TECHNOLOGY-MYSORE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1056-1065
  • Anahtar Kelimeler: Antioxidant activity, DPPH, Microwave-assisted hydrodistillation (MAHD), Essential oils, ROSMARINUS-OFFICINALIS L., 2-DIMENSIONAL GAS-CHROMATOGRAPHY, CONVENTIONAL HYDRO-DISTILLATION, VOLATILE SECONDARY METABOLITES, CHEMICAL-COMPOSITION, ANTIMICROBIAL ACTIVITY, ANTIOXIDANT PROPERTIES, DIFFERENT EXTRACTION, MASS-SPECTROMETRY, LAURUS-NOBILIS
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

Effects of microwave assisted hydrodistillation (MAHD) and conventional hydrodistillation (HD) methods on yield, composition, specific gravity, refractive index, and antioxidant and antimicrobial activities of essential oil of Rosmarinus officinalis L were studied. The main aroma compounds of rosemary essential oil were found as 1,8-cineole and camphor. Trolox equivalent antioxidant capacity (TEAC) values for essential oils extracted by MAHD and HD were 1.52 mM/ml oil and 1.95 mM/ml oil, respectively. DPPH radical scavenging activity of the oils obtained by MAHD and HD were found as 60.55% and 51.04% respectively. Inhibitory effects of essential oils obtained by two methods on linoleic acid peroxidation were almost the same. Essential oils obtained by two methods inhibited growth of Esherichia coli O157:H7, Salmonella typhimurium NRRLE 4463 and Listeria monocytogenes Scott A with the same degree. However, inhibitory activity of essential oil obtained by MAHD on Staphylococcus aureus 6538P was stronger than that of obtained by HD (p < 0.05).