Oil Palm Frond Juice as Future Fermentation Substrate: A Feasibility Study

Table 3

Microbial growth test on untreated and concentrated OPF juice (water removal of 95%).

Microorganisms	Treated OPF juice
	Control	Boiling; (95% moisture removal)	Rotary evaporator; (95% moisture removal)
Bacillus cereus	✓	✓	✓
Bacillus subtilis	✓	✓	✓
Escherichia coli	✓	✓	✓
Staphylococcus aureus	✓	✓	✓
Saccharomyces cerevisiae	✓	✓	✓
Mucor	✓	✓	✓
Penicillium	✓	✓	✓
Trichoderma	✓	✓	✓