Leyla Hızarcı USLU, OYA IŞIK, Selin SAYIN, YAŞAR DURMAZ, TOLGA GÖKSAN, ŞEVKET GÖKPINAR

The Effect of temperature on protein and amino acid composition of Spirulina platensis

Bu çalışma, mevsime bağlı iklim değişikliğinin yaz ve kış mevsimlerinde kültüre alınan Spirulina platensis’in protein içeriği ve amino asit kompozisyonuna etkilerini incelemek amacıyla yürütülmüştür. Çalışma boyunca ışık yoğunluğu, pH ve tuzluluk günlük olarak ölçülmüş, sıcaklık ve çözünmüş oksijen gün boyunca ve gece ölçülmüştür. Yaz ve kış mevsiminde ortalama gündüz sıcaklığı sırasıyla 33,9±0,4 ºC ve 18,6±0,5 ºC olarak belirlenirken, gece sıcaklığı 29,9±0,2 °C ve 14.4±0.2°C olarak belirlenmiştir. Ortalama ışık yoğunluğu yaz mevsiminde 848,3 μmol m-2s-1 iken kışın 506,26±48 μmol m-2s-1 olmuştur. Yaz büyüme döneminde protein miktarı (72,9±03 %) ve amino asit konsantrasyonu kış dönemine göre daha yüksek bulunmuştur. Amino asitlerden Prolin, Sistin ve Arjinin sadece kış mevsiminde gözlenmiştir.

Anahtar Kelimeler:

prolin, protein, sıcaklık, arginin, amino asitler

Sıcaklığın Spirulina platensis’in protein ve amino asit kompozisyonu üzerine etkisi

The purpose of this study was to clarify the seasonal variation of protein content and amino acid composition of Spirulina platensis grown in summer and winter. During the study, while the light intensity, pH and salinity were measured daily, the temperature and dissolved oxygen were measured during daytime and at night. While the mean day temperatures were recorded as 33.9±0.4 ºC and 18.6±0.5 ºC, the mean night temperatures were found to be 29.9±0.2 ºC and 14.4±0.2 ºC in summer and winter, respectively. The mean light intensity of 848.3 μmol m-2s-1 was determined in summer. It was 506.26±48 μmol m-2s-1 in winter. The protein amount (72.9±03 %) and the amino acid concentrations of S. platensis grown in summer were found to be higher than in winter. Some of the amino acids, Prolin, Sistin, and Arginine observed in winter, only.

Keywords:

proline, protein, temperature, arginine, amino acids,

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