TY - JOUR T1 - Combined effect of blanching and sonication on quality parameters of bottle gourd (Lagenaria siceraria) juice. AU - Bhat,Suheela, AU - Sharma,Harish Kumar, Y1 - 2016/04/11/ PY - 2016/01/26/received PY - 2016/04/09/revised PY - 2016/04/10/accepted PY - 2016/6/2/entrez PY - 2016/6/2/pubmed PY - 2018/5/1/medline KW - Blanching KW - Bottle gourd juice KW - Quality parameters KW - Sonication SP - 182 EP - 189 JF - Ultrasonics sonochemistry JO - Ultrason Sonochem VL - 33 N2 - This study evaluated the combined effect of blanching and sonication treatment on selected quality parameters of bottle gourd juice (BGJ). Bottle gourd cubes were blanched and juice was extracted. Effect of frequency (20-50kHz), amplitude (50-90%) and time (10-30min) was also studied on quality parameters like titratable acidity (TA), pH, total soluble solids (TSS), physical stability (PS), ascorbic acid (AA), total phenolics (TP), total carotenoids (TC), browning index (BI), total plate count (TPC) and yeast & mold count (Y&M) of BGJ to derive the level of these parameters. Combined effect of blanching followed by sonication (BFS) showed significant (P⩽0.05) change in all quality parameters except TA. Highest percentage of TSS (5.9°B), PS (2%), AA (18.99mg/100g), TP (1010mg/100g) and TC (5.8mg/100g) was observed at 70% amplitude, 50kHz frequency and 20min. Results suggested 70% amplitude, 50kHz frequency and 20min as best treatment conditions for processing of BGJ. Microstructure examination, transmission electron microscopy (TEM) and laser diffraction analysis of BGJ showed significant change in particle size and distribution. Moreover, TEM of blanched and sonicated samples of BGJ also showed significant (P⩽0.05) change in microbial profile. SN - 1873-2828 UR - https://www.unboundmedicine.com/medline/citation/27245969/Combined_effect_of_blanching_and_sonication_on_quality_parameters_of_bottle_gourd__Lagenaria_siceraria__juice_ DB - PRIME DP - Unbound Medicine ER -