Abstract
Objective: The purpose of this research was to produce carboxymethyl cellulose from rice husk (CMCRH) and used it as a raw material in food orhealth products.Methods: Cellulose was extracted from husk rice and converted to CMC (CMCRH) using sodium hydroxide (NaOH) and monochloroacetic acid inisopropanol (C3H8O).Results: CMCRH was characterized for chemical composition and morphology by scanning electron microscopy. Microscopy analysis showed thatchemical composition changes with increasing sodium content (Na-). Likewise, morphology has changed. Physicochemical and viscosity tests showedthat were similar properties compare with commercial CMC.Conclusion: CMC is derived cellulose that is used in products for various applications. RH is an agricultural waste that is carried out to synthesize CMC(CMCRH). Finally, CMCRH has the potential to be used in raw materials in food or health products which biodegradable material.
Highlights
Rice husk or rice hull (RH) is the coating on a grain of rice
carboxymethyl cellulose from rice husk (CMCRH) was extracted by 30% sodium hydroxide (NaOH) and monochloroacetic acid (MCA) in isopropanol (IPA)
The cellulose from RH was converted to Carboxymethyl cellulose (CMC) by sodium hydroxide (NaOH) and subsequently etherified with MCA
Summary
Rice husk or rice hull (RH) is the coating on a grain of rice. It contains silica and lignin which are very hard materials for protect the seed during the growing. RH is agricultural waste that is normally found in the first step of milling the rice with rice bran (Fig. 1) [1]. RH was often dumped and/or burned that because a serious environmental and human health problems. Such as RH charcoal is produced from combustion and the remaining RH ash after burning because it can be collected and is cheap [3]
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