High-Yield Alpha-Cellulose from Oil Palm Empty Fruit Bunches by Optimizing Thermochemical Delignification Processes for Use as Microcrystalline Cellulose

Table 1

Optimizing factors for bleaching on OPEFB.

Factor	Name	Minimum	Maximum	Coded low (−1)	Coded high (+1)	Mean (0)
X 1	Bleaching time (h)	0.59	3.41	1.00	3.00	2.00
X 2	Concentration of NaClO2 (%)	0.88	5.12	1.50	4.50	3.00