Research Article

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

Figure 7

Morphology of OPEFB and cellulose fibers using 1000x magnification SEM, 100 mm size: (a) OPEFB fiber; (b) OPEFB bleached fiber; (c) OPEFB cellulose of NaClO2 1.5% 3 h; (d) OPEFB cellulose of NaClO2 3% 2 h; (e) OPEFB cellulose of NaClO2 3.22% 1 h; and (f) OPEFB cellulose of NaClO2 4.5% 3 h.
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