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Enzymic Extraction of Native Starch from Sago ( Metroxylon sagu ) Waste Residue
Author(s) -
Mohd Abdul Manan Dos,
Islam Md. Nurul,
Noor Bin Mohd.
Publication year - 2001
Publication title -
starch ‐ stärke
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.62
H-Index - 82
eISSN - 1521-379X
pISSN - 0038-9056
DOI - 10.1002/1521-379x(200112)53:12<639::aid-star639>3.0.co;2-2
Subject(s) - incubation , pith , incubation period , starch , chemistry , residue (chemistry) , granule (geology) , food science , chromatography , botany , biochemistry , biology , paleontology
Residual native starch was extracted from sago pith residue using two types of commercial cell‐wall degrading enzymes, Pectinex Ultra SP‐L and Ultrazyme 100G. The first increased starch yield with a shorter incubation period than the second. The superior effect of Pectinex Ultra SP‐L was observed already at 0.5 h, where a wide granule size distribution (8—87 μm) was obtained. A slight increase in the release of granules ranging from 30—60 μm was noted within a 2 h incubation period. However, upon further incubation, the distribution pattern was similar to that of untreated samples. Samples treated with Ultrazyme 100G exhibited a unimodal distribution pattern, with larger granules, ranging from 40—70 μm, being released upon further incubation within a 2 h incubation period. However, all samples exhibited a bimodal distribution upon further incubation.