drum dryer เครื่อง ทํา แห้ง แบบ ลูกกลิ้ง
metabisulphite solution and 1 % soy lecithin. The puree was then fed to drum dryer at specific process conditions, the process parameters were drum surface temperature (120, 130 and 140 oC) and drum clearances or film thickness (0.15 and 0.30 mm). It was found that the effective
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