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Development of an innovative apparatus using UV‐C for controlling the number of microorganisms in raw milk after milking
Author(s) -
Makarapong David,
Tantaya Supawan,
Gowanit Chupun,
Inchaisri Chaidate
Publication year - 2020
Publication title -
international journal of dairy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.061
H-Index - 53
eISSN - 1471-0307
pISSN - 1364-727X
DOI - 10.1111/1471-0307.12654
Subject(s) - microorganism , milking , food science , raw milk , chemistry , zoology , biology , bacteria , genetics
This study was conducted to investigate the effect of UV‐C irradiation on the reduction of microorganisms in raw milk. The experiments were carried out by varying the flow rates of 2, 4 and 7 L/min with 39W and 48W UV‐C. The number of microorganisms was reduced by 4.70 (39W) and 4.60 log 10 CFU/mL (48W) at 120 min. With the residence time of 4.95 s and the UV‐C doses of 98 and 109.9 mJ/cm 2 at 253.74 nm, the reduction of microorganism was clearly observed with no significant influence of different UV‐C power settings on the oxidation of milk fat.