Development of Process for Extraction of Pectin from Mango Peel
Mango waste utilization
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Experiments were carried out to develop the method for extraction of pectin from Totapuri mango peels. Water washed mango peels and alcohol insoluble residues of mango peels were used as a raw material. Two extractions were carried by 0.25% ammonium oxalate, 0.05N HCl and cation exchange resin as an extracting medium. Extraction ratio 1:2 was kept constant for extraction by 0.25% ammonium oxalate and 0.05N HCl, whereas in case of cation exchange resin it was varied from 1:2, 1:3 and 1:4. The extraction pH 4.6, 1.75 and 2.56 was kept constant for extraction by 0.25% ammonium oxalate, 0.05N HCl ...
Experiments were carried out to develop the method for extraction of pectin from Totapuri mango peels. Water washed mango peels and alcohol insoluble residues of mango peels were used as a raw material. Two extractions were carried by 0.25% ammonium oxalate, 0.05N HCl and cation exchange resin as an extracting medium. Extraction ratio 1:2 was kept constant for extraction by 0.25% ammonium oxalate and 0.05N HCl, whereas in case of cation exchange resin it was varied from 1:2, 1:3 and 1:4. The extraction pH 4.6, 1.75 and 2.56 was kept constant for extraction by 0.25% ammonium oxalate, 0.05N HCl and cation exchange resin, respectively. Extraction was carried out at 80 deg.C and 100 deg.C for 60 min. The yield of pectin, equivalent weight, methoxyl content, molecular weight, relative viscosity, viscosity and jelly grade shows increasing trend and ash content, alkalinity of ash, anhydrouronic acid and acetyl value shows decreasing trend with increase in extraction temperature and extraction ratio. Pectin extraction by cation exchange resin process was found most favorable process as it gives more percent profit on sale and on capital investment i.e. 0.80% and 4.15%, respectively.
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