YAŞAR DURMAZ, OYA IŞIK, M. Narcisa BANDARRA, Semra CİRİK, GAMZE TURAN, ŞEVKET GÖKPINAR

Porphyridium cruentum (Rhodophyceae) yağ asitleri kompozisyonuna kurutma yöntemlerinin etkisi

Porphyridium cruentum (S.F.Gray) Naegeli'un dış ortamda ince cam panel biyoreaktörlerde yığın kültürleri yapıldı. Elde edilen algal biyomas farklı kurutma işlemlerinden geçirildikten sonra yağ asitleri içerikleri bakımından karşılaştırıldı. Etüvde kurutulan örneklerde toplam doymuş yağ asitleri (TSAT) %31.01, toplam çok doymamış yağ asitleri (PUFA) %14.83, toplam tek doymamış yağ asitleri (MUFA) %54.16 idi. Oda sıcaklığında kurutulanlarda TSAT %36.61, PUFA %17.41, MUFA %45.98 olarak saptandı. PUFA ve TSAT oda sıcaklığında kurutulan örneklerde'daha yüksek değerler vermesine rağmen, etüvde kurutma ile PUFA grubundan alfalinoleik asit (18:3w3,ALA) %1.76, gammalinoleik asit (18:3w6,GLA) %0.51, eicosapentatenoik asit (20:5w3, EPA) %7.42 ile daha yüksek değerler verdi. Oda sıcaklığında ve etüvde kurutularak elde edilen algal pastanın PUFA grubundan EPA içeriğinde önemli bir azalmanın meydana geldiği ve örneklerde ARAMn ise hiç tespit edilemediği görüldü. Bu çalışmada P. cruentum için denenmiş olan kurutma işlemlerinin, PUFA grubu yağ asitleri kaybına neden olduğu görüldü.

Anahtar Kelimeler:

yağ asitleri, sağlık, Rhodophyta, algler, kurutma yöntemleri, tıbbi özellikler

The effects of the drying methods on the fatty acids composition of porphyridium cruentum (Rhodophyceae)

The marine Rhodophyte Porphyridium cruentum (S. F. Gray) Naegeli was cultured in thin glass panel bioreactors in outdoor. The algal biomass was dried using different methods and their effects on the fatty acids compositions off. cruentum was investigated. The results of the present study showed that the sample which were dried in etuve contain 31.01% total saturated fatty acids (TSAT), 14.83% total polyunsaturated fatty acids (PUFA) and 54.16% total monounsaturated fatty acids (MUFA), the samples dried in room temperature contain 36.61% TSAT, 17.41 % PUFA and 45.98% MUFA. Although the content of PUFA and TSAT were found to be higher in the samples dried in room temperature, Alphalinoleic acid (18:3w3, ALA), gammalinoleic acid(18:3w6, GLA) and eicosapentaenoic acid (20:5w3, EPA) were found to be higher in the samples dried in oven and they were 1.76%, 0.51% and 7.42%, respectively. There was a significant decrease in EPA from group of PUFA which is obtained from algal pasta dried in room and oven temperature. In all samples, arachidonic asit (20:4w6, ARA) wasn't determined. In the study it was reported that the drying methods used for P. cruentum caused low PUFA content.

Keywords:

fatty acids, health, Rhodophyta, algae, drying methods, medicinal properties,

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