Kandungan antinutrisi, logam berat dan cemaran biologis tepung buah Sonneratia spp dan Rhizophora mucronata dari populasi hutan mangrove di Kabupaten Kupang

Abstract

Mangrove degradation tend to increase due to excessive human activity such as land conversion, wood extraction for construction and fuel wood and nonmetallic extraction. The utilization of fruit of mangroves-in certain limits- can be an alternative way to convert the destructive utilization into more environmentally friendly one. This study aims to determine three types of flour i.e Sonneratia spp fruit flesh flour (SFFF), Rhizophora mucronata fruit skin flour (RSFF) ; and Rhizophora fruit flesh flour (RFFF). Since the utilization of SFFF is more developed in community than RSFF and RFFF, the SFFF is examined more than the two next. The analysis was conducted at the Laboratory of Center for Agro-Based Industry and Laboratory of Study Center for Biopharmaca, Bogor Agricultural Institute. The examination of SFFF covered antinutrient content (tannin and cyanide acid (HCN)), heavy metal (Pb, Mn, Cu, Hg and As) and biological contaminants (total plate count, Escherichia coli, Bacillus cereus, Salmonella sp, mold and yeast). The examination of RSFF and RFFF covered only tannin as antinutrient and Pb, Mn, Cu, Hg and As as heavy metals. The results showed that SFFF met the SNI Standards for tannin, HCN, Hg, As, E.coli, B. cereus, Salmonella sp, molds and yeasts while the Cu and Mn did not. RSFF and RFFF met the standards for tannin, Hg and As, while Pb, Cu dan Mn content did not. These content may be reduced by increasing the soaking and boiling time.