Storage study and quality evaluation of coconut protein powder.
Coconut skim milk and insoluble protein are 2 major byproducts in the production of virgin coconut oil. Coconut skim milk was homogenized along with insoluble protein and spray dried to obtain a value-added product, namely, coconut protein powder (CPP). This study deals with the storage study of CPP under different conditions (refrigerated [control], ambient and accelerated). CPP samples were withdrawn periodically at designated intervals of 15 d for accelerated and control, and 30 d for ambient condition. CPP stored at different conditions exhibited marginal moisture uptake (by 0.74 % w/w for control, 0.76 % w/w for ambient, and 1.26 % w/w for accelerated condition) and as a result, had very little effect on the functional properties of the powder. Withdrawn CPP was tested for sensory quality aspects and subjected to instrumental analysis as well. Withdrawn CPP was incorporated as a milk substitute in dessert (Kheer). Quantitative descriptive analysis of the powder and product (Kheer) showed no significant difference in attributes of CPP during the storage period of 2 mo. Electronic nose analysis revealed that CPP samples were not much different with respect to aroma pattern matching, respectively.
Dept. of Food Engineering, CSIR, Central Food Technological Research Inst. (CFTRI), Mysore, 570 020, India.
Aduja
A
Naik
Maya
M
Prakash
Ravi
R
R
Ksms
K
Raghavarao
D000328:Adult; D000074263:Coconut Oil; D003059:Cocos / Q000737:chemistry*; D005069:Evaluation Studies as Topic; D018857:Food Packaging; D005519:Food Preservation / Q000379:methods; D061353:Food Storage / Q000379:methods*; D006801:Humans; D008875:Middle Aged; D009812:Odorants / Q000032:analysis; D010938:Plant Oils / Q000737:chemistry; D010940:Plant Proteins / Q000737:chemistry*; D011208:Powders; D013649:Taste; D013696:Temperature
D010938:Plant Oils; D010940:Plant Proteins; D011208:Powders; D000074263:Coconut Oil
coconut protein powder; electronic-nose; electronic-tongue; quantitative descriptive analysis; sensory evaluation