Development of Bio-PORec (R) system for polyhydroxyalkanoates (PHA) production and its storage in mixed cultures of palm oil mill effluent (POME)

作者：Din Mohd Fadhil Md; Mohanadoss Ponraj^*; Ujang Zaini; van Loosdrecht Mark; Yunus Salmiati Muhd; Chelliapan Shreeshivadasan; Zambare Vasudeo; Olsson Gustaf

来源：Bioresource Technology, 2012, 124: 208-216.

DOI：10.1016/j.biortech.2012.08.036

• Feast-famine regime
• Bio-PORec (R)
• Aerobic-feeding condition
• Palm oil mill effluent
• Polyhydroxyalkanoates

High PHA production and storage using palm oil mill effluent (POME) was investigated using a laboratory batch Bio-PORec (R) system under aerobic-feeding conditions. Results showed that maximum PHA was obtained at a specific rate (q(p)) of 0.343 C-mol/C-mol h when air was supplied at 20 ml/min. The PHA yield was found to be 0.80 C-mol/C-mol acetic acid (HAc) at microaerophilic condition and the mass balance calculation showed that PHA production increased up to 15.68 +/- 2.15 C-mmol/cycle. The experiments showed that short feeding rate, limited requirements for electron acceptors (e.g. O-2, NO3) and nutrients (N and P) showed lower tendency of glycogen accumulation and contributed more to PHA productivity.

• 出版日期2012-11