Inkorporasi Kromium pada Khamir dan Kapang dengan Substrat Dasar Singkong yang Diberi Kromium Anorganik
Abstract: Organic-chromium
(Cr) has higher availability for animals than inorganic-Cr sources. One of
organic-Cr sources known is fungi contained high Cr. This organic-Cr was
incorporated to fungi protein. Information about the best fungi or
microorganisms used in organic-Cr production is still limited. The objective of
this experiment was to study organic-Cr production using different kinds of
fungi as Cr carrier. Organic-Cr production was conducted in a 4x3 factorial
completely randomized experimental design with 3 replications. Four fungi used
as carriers in organic-Cr production as the first factor were Saccharomyces
cerevisiae, Aspergillus oryzae, Rhizopus oryzae and "ragi tape". The
second factor was levels of Cr addition (500, 1000, 1500 mg/kg). Addition of
1000 mg Cr/kg substrate gave the highest Cr incorporation to fungi protein (484
mg/kg) and Cr incorporation efficiency (21.1%). The best fungi used as carrier
in organic-Cr production was Rhizopus oryzae which gave the highest Cr
incorporation (488 mg/kg) and incorporation efficiency (24.7%).
Key words: organic-Cr,
production, Saccharomyces cerevisiae, Aspergillus oryzae, Rhyzopus oryzae,
"ragi tape"
Penulis: W D Astuti, T
Sutardi, D Evvyernie, T Toharmat
Kode Jurnal: jppeternakandd060061
