National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Pulsed light is an emerging non thermal processing technology used for food decontamination. A laboratory scale pulsed light treatment chamber was designed and fabricated. In this study, tender coconut water was exposed to pulsed light to inactivate the E. coli using different process parameter such as juice layer depth (5, 10, 15 and 20mm), shelf height (5, 10 and 15cm) and number of pulses (60, 120, 180 and 240 flashes) corresponding to an fluency of 4.8, 9.6, 14.4 and 19.2J/cm2. Sterilized tender coconut was inoculated with E. coli culture of 106 cfu/ml. Treatments led to maximum reduction of 5.2 log cfu/ml achieved when using 5mm of juice layer, closest shelf distance (5cm) from the lamp and 240 flashes. Soluble solids, pH and color showed no statistical differences (p<0.05). The obtained result suggests that Pulsed light technology will be effective in reducing E. coli counts in tender coconut without compromising the product quality.
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