Abstract
Aspartame was used in the manufacture of kalakand instead of sucrose. Sensory evaluation revealed that aspartame when used in the preparation of kalakand at a level of 0.065% scored the highest in terms of sweetness perception and resembled control. Aspartame sweetened kalakand possessed the same desirable sweetness, colour, body and texture/consistency and mouthfeel even after 7days of storage at 6-8°C. Significant increase in titratable acidity of control as well as aspartame sweetened kalakand was observed during storage. However, only a slight drop in pH was observed in all samples on storage. The titratable acidity was higher in aspartame sweetened products than the corresponding control samples. Lightness (L*) was less in control samples with sucrose than the aspartame sweetened kalakand during storage. Total plate counts were higher in aspartame sweetened kalakand than its corresponding control throughout the storage period. Total plate counts increased linearly for both aspartame sweetened kalakand and control. A solid phase extraction method was standardized for the isolation of aspartame in kalakand. HPLC analytical conditions were standardized for separation of aspartame and its degradation products diketopiperazine and L-phenylalanine. HPLC analysis revealed that aspartame did not degrade in kalakand during storage establishing its stability in these products.
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