Effect of Adding Different Active Substances on Inhibition Zone Diameter and Microstructural Properties of Composite Bioplastics
Abstract This study identifies the phytochemical compounds in ethanolic extracts of Syzygium myrtifolium leaves, applies it to developing composite bioplastics as a natural antibacterial agent, and compares it with composite bioplastics prepared with sodium benzoate, particularly...
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Universitas Brawijaya, Department of Food Science and Biotechnology, Agricultural Technology Faculty
2025-01-01
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| Series: | Jurnal Pangan dan Agroindustri |
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| Online Access: | https://jpa.ub.ac.id/index.php/jpa/article/view/1251 |
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| author | Nelsy Dian Permatasari Jatmiko Eko Witoyo Donor Utomo M. Susilo Ayu Rahayu Saraswati Masruri Sudarminto Setyo Yuwono Simon Bambang Widjanarko |
| author_facet | Nelsy Dian Permatasari Jatmiko Eko Witoyo Donor Utomo M. Susilo Ayu Rahayu Saraswati Masruri Sudarminto Setyo Yuwono Simon Bambang Widjanarko |
| author_sort | Nelsy Dian Permatasari |
| collection | DOAJ |
| description | Abstract
This study identifies the phytochemical compounds in ethanolic extracts of Syzygium myrtifolium leaves, applies it to developing composite bioplastics as a natural antibacterial agent, and compares it with composite bioplastics prepared with sodium benzoate, particularly regarding inhibition zone diameter and microstructure. The results showed that the phytochemicals were identified in the ethanolic extract of Syzygium myrtifolium leaves, like flavonoids, alkaloids, tannins, phenolics, terpenoids, and saponins. LC-MS confirming bioactive in it as auraptenol, calopiptin, quercetin-3-O-β-D glucuronide, and quercetin-3-O-L-arabinopyranoside. Moreover, in vitro tests showed that composite bioplastics with the ethanolic extracts of Syzygium myrtifolium had inhibition zone diameter against E. coli, similar to those with sodium benzoate added. Additionally, the microstructure of the composite bioplastics with the ethanolic extracts of Syzygium myrtifolium was rougher, irregular, and more porous than those of another. It indicated that the ethanolic extract of Syzygium myrtifolium leaf could be used as a natural antibacterial agent to replace the chemical agent.
Keywords: Composite bioplastics; Inhibition diameter zone; Microstructure; Phytochemical; Syzygium myrtifolium Extract. |
| format | Article |
| id | doaj-art-bc48462d8cd74587914033bf883d3aae |
| institution | Kabale University |
| issn | 2354-7936 2685-2861 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Universitas Brawijaya, Department of Food Science and Biotechnology, Agricultural Technology Faculty |
| record_format | Article |
| series | Jurnal Pangan dan Agroindustri |
| spelling | doaj-art-bc48462d8cd74587914033bf883d3aae2025-02-04T06:02:57ZengUniversitas Brawijaya, Department of Food Science and Biotechnology, Agricultural Technology FacultyJurnal Pangan dan Agroindustri2354-79362685-28612025-01-01131132210.21776/ub.jpa.2025.013.01.2Effect of Adding Different Active Substances on Inhibition Zone Diameter and Microstructural Properties of Composite BioplasticsNelsy Dian Permatasari0Jatmiko Eko Witoyo1Donor Utomo M. Susilo2Ayu Rahayu Saraswati3Masruri4Sudarminto Setyo Yuwono5Simon Bambang Widjanarko6Politeknik Tonggak Equator PontianakInstitut Teknologi SumateraPontianak State PolytechnicInstitut Teknologi SumateraUniversitas BrawijayaUniversitas BrawijayaUniversitas BrawijayaAbstract This study identifies the phytochemical compounds in ethanolic extracts of Syzygium myrtifolium leaves, applies it to developing composite bioplastics as a natural antibacterial agent, and compares it with composite bioplastics prepared with sodium benzoate, particularly regarding inhibition zone diameter and microstructure. The results showed that the phytochemicals were identified in the ethanolic extract of Syzygium myrtifolium leaves, like flavonoids, alkaloids, tannins, phenolics, terpenoids, and saponins. LC-MS confirming bioactive in it as auraptenol, calopiptin, quercetin-3-O-β-D glucuronide, and quercetin-3-O-L-arabinopyranoside. Moreover, in vitro tests showed that composite bioplastics with the ethanolic extracts of Syzygium myrtifolium had inhibition zone diameter against E. coli, similar to those with sodium benzoate added. Additionally, the microstructure of the composite bioplastics with the ethanolic extracts of Syzygium myrtifolium was rougher, irregular, and more porous than those of another. It indicated that the ethanolic extract of Syzygium myrtifolium leaf could be used as a natural antibacterial agent to replace the chemical agent. Keywords: Composite bioplastics; Inhibition diameter zone; Microstructure; Phytochemical; Syzygium myrtifolium Extract.https://jpa.ub.ac.id/index.php/jpa/article/view/1251composite bioplasticsinhibition diameter zonemicrostructurephytochemicalsyzygium myrtifolium extract |
| spellingShingle | Nelsy Dian Permatasari Jatmiko Eko Witoyo Donor Utomo M. Susilo Ayu Rahayu Saraswati Masruri Sudarminto Setyo Yuwono Simon Bambang Widjanarko Effect of Adding Different Active Substances on Inhibition Zone Diameter and Microstructural Properties of Composite Bioplastics Jurnal Pangan dan Agroindustri composite bioplastics inhibition diameter zone microstructure phytochemical syzygium myrtifolium extract |
| title | Effect of Adding Different Active Substances on Inhibition Zone Diameter and Microstructural Properties of Composite Bioplastics |
| title_full | Effect of Adding Different Active Substances on Inhibition Zone Diameter and Microstructural Properties of Composite Bioplastics |
| title_fullStr | Effect of Adding Different Active Substances on Inhibition Zone Diameter and Microstructural Properties of Composite Bioplastics |
| title_full_unstemmed | Effect of Adding Different Active Substances on Inhibition Zone Diameter and Microstructural Properties of Composite Bioplastics |
| title_short | Effect of Adding Different Active Substances on Inhibition Zone Diameter and Microstructural Properties of Composite Bioplastics |
| title_sort | effect of adding different active substances on inhibition zone diameter and microstructural properties of composite bioplastics |
| topic | composite bioplastics inhibition diameter zone microstructure phytochemical syzygium myrtifolium extract |
| url | https://jpa.ub.ac.id/index.php/jpa/article/view/1251 |
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