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INCORPORATION OF SODIUM HYALURONATE AND NYAMPLUNG (Calophylum inophyllum) CAKE EXTRACT TO IMPROVE BIOPLASTIC CHARACTERISTIC:

BIOTROPIA · Vol. 29 No. 1 (2022) · hlm. 56–68

DOI
10.11598/btb.2022.29.1.1626
ISSN
1907-770X, 0215-6334
Terbit
2022-04-27
Penerbit
SEAMEO BIOTROP
Bahasa
en
Lisensi
creativecommons.org/licenses/by-nc-nd/4.0

Abstrak

The cross-linking agent plays an important role in bioplastic mechanical properties. This study aimed to determine the effect of Sodium Hyaluronate (SoHA) as a synthetic cross-linking agent and the addition of Nyamplung Cake Extract (NCE) as an antimicrobial agent in the manufacture of bioplastic with hydroxypropyl starch (HPS) as based ingredient using the thermo-compression method. The novelty of the study was thiocyanate (SCN) formation in zone 3 (2161.66-2162.02/cm) and cyanate (C-N=O) in zone 6 (1,411.57 - 1,412.61/cm) of (1, 2 and 3%) SoHA bioplastic and cyanate formation in zone 6 and 7 (1,411.37 - 1,558.59/cm) of (1, 2 and 3%) SoHA – 20% NCE combined bioplastic originating from acetanilide group in SoHA and amide group in NCE. The formation of SCN and C-N=O in 2 and 3% SoHA bioplastic improved its sensitivity against gram-positive bacteria (Staphylococcus aureus) indicated by 0.6 mm and 0.45 mm inhibition zone, respectively. C-N=O formed in (1, 2 and 3%) SoHA – 20% NCE combined with bioplastic had 3.25 mm average inhibition zone against gram-positive bacteria (S. aureus), 2.75 mm against gram-negative bacteria (Escherichia coli), and 0.71 mm against fungi (Aspergillus niger). The analysis of mechanical properties showed that an addition of 3% SoHA was able to increase tensile strength and modulus of elasticity while reducing elongation, water solubility and water vapor permeability. Addition of (1, 2 and 3%) SoHA – 20% NCE resulted in a reverse effect.

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Sumber metadata: OAI-PMH (metadata jurnal) http://journal.biotrop.org/index.php/biotropia/oai, pertama di-harvest 8 Nov 2026, terakhir terlihat 8 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en">INCORPORATION OF SODIUM HYALURONATE AND NYAMPLUNG (Calophylum inophyllum) CAKE EXTRACT TO IMPROVE BIOPLASTIC CHARACTERISTIC :  </dc:title>
	<dc:creator xml:lang="en">Umiyati, Rini</dc:creator>
	<dc:creator xml:lang="en">Hidayat, Chusnul</dc:creator>
	<dc:creator xml:lang="en">Millati, Ria</dc:creator>
	<dc:creator xml:lang="en">Teguh Ariyanto</dc:creator>
	<dc:subject xml:lang="en">acetanilide</dc:subject>
	<dc:subject xml:lang="en">amide</dc:subject>
	<dc:subject xml:lang="en">cross-linking agent</dc:subject>
	<dc:subject xml:lang="en">cyanate</dc:subject>
	<dc:subject xml:lang="en">thiocyanate</dc:subject>
	<dc:description xml:lang="en">The cross-linking agent plays an important role in bioplastic mechanical properties. This study aimed to determine the effect of Sodium Hyaluronate (SoHA) as a synthetic cross-linking agent and the addition of Nyamplung Cake Extract (NCE) as an antimicrobial agent in the manufacture of bioplastic with hydroxypropyl starch (HPS) as based ingredient using the thermo-compression method. The novelty of the study was thiocyanate (SCN) formation in zone 3 (2161.66-2162.02/cm) and cyanate (C-N=O) in zone 6 (1,411.57 - 1,412.61/cm) of (1, 2 and 3%) SoHA bioplastic and cyanate formation in zone 6 and 7 (1,411.37 - 1,558.59/cm) of (1, 2 and 3%) SoHA – 20% NCE combined bioplastic originating from acetanilide group in SoHA and amide group in NCE. The formation of SCN and C-N=O in 2 and 3% SoHA bioplastic improved its sensitivity against gram-positive bacteria (Staphylococcus aureus) indicated by 0.6 mm and 0.45 mm inhibition zone, respectively. C-N=O formed in (1, 2 and 3%) SoHA – 20% NCE combined with bioplastic had 3.25 mm average inhibition zone against gram-positive bacteria (S. aureus), 2.75 mm against gram-negative bacteria (Escherichia coli), and 0.71 mm against fungi (Aspergillus niger). The analysis of mechanical properties showed that an addition of 3% SoHA was able to increase tensile strength and modulus of elasticity while reducing elongation, water solubility and water vapor permeability. Addition of (1, 2 and 3%) SoHA – 20% NCE resulted in a reverse effect.</dc:description>
	<dc:publisher xml:lang="en">SEAMEO BIOTROP</dc:publisher>
	<dc:date>2022-04-27</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.biotrop.org/index.php/biotropia/article/view/1626</dc:identifier>
	<dc:identifier>10.11598/btb.2022.29.1.1626</dc:identifier>
	<dc:source xml:lang="en">BIOTROPIA; Vol. 29 No. 1 (2022): BIOTROPIA Vol. 29 No. 1 April 2022; 56 - 68</dc:source>
	<dc:source>1907-770X</dc:source>
	<dc:source>0215-6334</dc:source>
	<dc:source>10.11598/btb.2022.29.1.</dc:source>
	<dc:language>en</dc:language>
	<dc:relation>https://journal.biotrop.org/index.php/biotropia/article/view/1626/662</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2022 Rini Umiyati, Chusnul Hidayat, Ria Millati, Teguh Ariyanto</dc:rights>
	<dc:rights xml:lang="en">http://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
</oai_dc:dc>