PENGARUH PRA PERLAKUAN TERHADAP KUALITAS KUNYIT YANG DIKERINGKAN DENGAN MENGGUNAKAN SOLAR TUNNEL DRYER
ABSTRACT: Turmeric (Curcuma
domestica Val.) has many health benefits and can be used in herbal medicine as
well as traditional herbal drink. Turmeric can also be used as a natural dye in
food. Turmeric is very perishables in a fresh state, thus drying process is
needed to extend its shelf life. An environmentally friendly drying using Solar
Tunnel Dryer (STD) is one of the techniques that is interestingly developed.
The purpose of this study was to determine the effect of steam blanching at
different times (3, 5, and 10 minutes) and soaking using a 0.05% citric acid
for 5 minutes on the physicochemical and microbiological qualities of turmeric
dried by STD. Measurements were conducted to analyze water content, water
activity, curcumin content, antioxidant activity, pH, water activity, color
intensity, and total fungi. The results showed that steam blanching and
immersion using a 0.05% citric acid for 5 minutes could reduce the drying time
when compared to that of control. While 5 minutes of steam blanching with
immersion in the 0.05% citric acid for 5 minutes could produce a high
antioxidant activity which was 80.30 ± 0.89 (% inhibition) and it had the
lowest total fungi which were 3.33 ± 5.00%
Penulis: Victoria Kristina
Ananingsih, Gracia Arsanti, Robertus Probo Yulianto Nugrahedi
Kode Jurnal: jppertaniandd170490
