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All Journal JFMR (Journal of Fisheries and Marine Research) Canrea Journal: Food Technology, Nutritions, and Culinary Journal International Journal of Sustainable Competitiveness on Tourism
Angga Wira Perdana
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Engineering Environmental Science Social Sciences Other

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PENGARUH PERBEDAAN KONSENTRASI PVA (POLIVINIL ALKOHOL) DAN TEPUNG BUAH MANGROVE Bruguiera gymnorrhiza TERHADAP KARAKTERISTIK SIFAT FISIKA HIDROGEL: THE EFFECT OF DIFFERENT CONCENTRATIONS OF PVA (POLYVINYL ALCOHOL) AND MANGROVE FRUIT FLOUR Bruguiera gymnorrhiza ON THE PHYSICAL PROPERTIES OF HYDROGELS Anna Lailatul Fitri; Dwi Setijawati; Muhammad Firdaus; Angga Wira Perdana
JFMR (Journal of Fisheries and Marine Research) Vol. 7 No. 2 (2023): JFMR on August
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2023.007.02.6

Abstract

Tumbuhan mangrove Bruguiera gymnorrhiza merupakan tanaman sumberdaya pesisir yang banyak tumbuh di Indonesia. Buah mangrove Bruguiera gymnorrhiza bisa dijadikan tepung dan dapat digunakan dalam pembuatan produk hidrogel. Tujuan dari penelitian ini yaitu untuk mengetahui pengaruh perbedaan konsentrasi PVA dan tepung buah mangrove Bruguiera gymnorrhiza terhadap karakteristik sifat fisika hidrogel. Metode penelitian yang digunakan adalah metode eksperimental dengan menggunakan Rancangan Acak Lengkap (RAL) Faktorial dengan 2 faktor. Faktor pertama yaitu perbedaan konsentrasi PVA (1,5%, 1,75%, 2%, dan 2,25%) sedangkan faktor kedua yang digunakan yaitu perbedaan konsentrasi tepung buah mangrove Bruguiera gymnorrhiza (0%, 2,5% dan 4,5%) dengan 3 kali pengulangan. Hasil penelitian menunjukkan bahwa perbedaan konsentrasi PVA, tepung buah mangrove Bruguiera gymnorrhiza, dan interaksi keduanya memberikan hasil berbeda nyata (P<0,05) terhadap daya serap air, fraksi gel, kadar air, tensile strength, dan elongasi hidrogel. Produk hidrogel ditandai dengan kemampuan menyerap air yang tinggi. Dengan karakteristik hidrogel terhadap daya serap air, didapatkan hasil tertinggi perlakuan PVA 2% dan tepung buah mangrove Bruguiera gymnorrhiza 4,5% sebesar 287,49 ± 0,39%.   The Bruguiera gymnorrhiza mangrove is a coastal resource plant that grows a lot in Indonesia. Bruguiera gymnorrhiza mangrove fruit can be made into flour and can be used in the manufacture of hydrogel products. The purpose of this study was to determine the effect of different concentrations of PVA and Bruguiera gymnorrhiza mangrove fruit flour on the physical characteristics of the hydrogel. The research method used is an experimental method using a Factorial Completely Randomized Design (CRD) with 2 factors. The first factor is the difference in the concentration of PVA (1.5%, 1.75%, 2%, and 2.25%) while the second factor used is the difference in the concentration of the Bruguiera gymnorrhiza mangrove fruit flour (0%, 2.5% and 4, respectively). 5%) with 3 repetitions. The results showed that the different concentrations of PVA, mangrove fruit flour Bruguiera gymnorrhiza, and their interactions gave significantly different results (P<0.05) on water absorption, gel fraction, water content, tensile strength, and hydrogel elongation. Hydrogel products are characterized by their high water absorption capacity. With hydrogel characteristics on water absorption, the highest yield of PVA treatment was 2% and Bruguiera gymnorrhiza mangrove fruit meal 4.5% at 287.49 ± 0.39%.
Optimization Model for Marine Ecotourism Development to Achieve Sustainability and Inclusivity: A Case Study of Coastal Villages in Malang Regency Rudianto; Bayu Kusuma; Wahida Kartika Sari; Maheno Sri Widodo; Supriatna; Angga Wira Perdana; Andik Isdianto; Seftiawan Samsu Rijal; Niken Hendrakusma Wardani; Kurniasari, Reni Dyah Yuni
International Journal of Sustainable Competitiveness on Tourism Vol. 4 No. 01 (2025): IJSCOT IV-01
Publisher : Politeknik Pariwisata NHI Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34013/ijscot.v4i01.1787

Abstract

Research aims to develop an optimization model for marine ecotourism development to achieve sustainability and inclusivity: a case study of coastal villages in Malang Regency, including: Ampelgading, Bantur, Donomulyo, Gedangan, Sumbermanjing Wetan, and Tirtoyudo. This research is a quantitative study using primary data. Quantitative research is research that produces findings that can be achieved (obtained) using statistical procedures or other means of quantification. The GeSCA method will be used to develop a model for marine tourism area development. Out of the 6 tested hypotheses, five were accepted and one was rejected. Here are the results of the tests: Contribution to biodiversity conservation (O1) affects the Use of New and Renewable Resources (O6) can be accepted. Include Interpretation or Learning Experience (O3) affects the Use of New and Renewable Resources (O6)" is rejected. Use of New and Renewable Resources (O6) affects the Development of Small-Scale Enterprises (O5) can be accepted. Development of Small-Scale Enterprises (O5) affects the Sustainable Community Well-being (O2) can be accepted. Development of Small-Scale Enterprises (O5) affects the Community Participation, Ownership, and Business Opportunities (O7) can be accepted. Sustainable Community Well-being (O2) affects the Involve Responsible Action by Tourists and the Tourism Industry (O4) can be accepted.
In silico approaches to analyse Acanthus ilicifolius leaves extract as α-glucosidase and α-amylase inhibitors Puspitasari, Yunita Eka; Yunita Aminatus Sholichah; Naufal Rakha Defransyah; Titik Dwi Sulistiyati; Luthfi Ari Prihanto; Angga Wira Perdana; Hardoko Hardoko; Irenia Paulin Hutapea
jurnal1 VOLUME 8 ISSUE 2, DECEMBER 2025
Publisher : Hasanuddin University Food Science and Technology Study Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/canrea.v8i2.1165

Abstract

α-glucosidase and α-amylase inhibitors were employed as treatments for type II diabetes. Acarbose, a commonly used commercial medicine for diabetes, has been widely utilized. However, it is associated with gastrointestinal adverse effects.  Hence, the investigation of mangrove plants as potential sources of α-glucosidase and α-amylase inhibitors has garnered significant interest. In Indonesia, the leaves of the Acanthus ilicifolius shrub, commonly known as mangrove, are processed into black and green tea.   Nevertheless, the investigation of phytochemical substances and their potential as antidiabetic agents has not yet been conducted.   Hence, the objective of this study was to determine the phytochemical constituents of the extract obtained from A. ilicifolius mangrove leaves and to evaluate its inhibitory effects on α-glucosidase and α-amylase enzymes using computational methods. The investigations consisted of two steps: the identification of phytochemical substances and the analysis of molecular docking between receptor α-glucosidase (PDB ID: 3A4A) and α-amylase (PDB ID: 4GQR). A. ilicifolius leaf extract contains a variety of phytochemical compounds, including terpenoids (oleanolic acid), steroid (flurandrenolide), flavonoid (corymboside, scutellarin, apigenin 7-O-glucuronide, luteolin, glycitein, apigenin, 4-coumaric acid, were identified in this study. In binding interactions with α-glucosidase, three compounds—reserpine (-10 kcal/mol), scuttelarin (-9.9 kcal/mol), and apigenin-7-glucuronide (-9.9 kcal/mol)—establish a higher energy binding in comparison to the other ligands. Four compounds extracted from the leaves of A. ilicifolius, particularly corymboside, apigenin-7-glucuronide, scutellarin, and oleanolic acid, exhibit greater molecular affinity in their interaction with α-amylase. As a result, it can be deduced that the leaf extract of A. ilicifolius exhibits significant inhibitory activity against α-glucosidase and α-amylase via in silico techniques. As a result, it can be deduced that the leaf extract of A. ilicifolius exhibits significant inhibitory activity against α-glucosidase and α-amylase via in silico methods.
Co-Authors Andik Isdianto Anna Lailatul Fitri Bayu Kusuma Dwi Setijawati Hardoko Hardoko Irenia Paulin Hutapea Kurniasari, Reni Dyah Yuni Luthfi Ari Prihanto Maheno Sri Widodo, Maheno Sri Muhammad Firdaus Naufal Rakha Defransyah Niken Hendrakusma Wardani Rudianto Seftiawan Samsu Rijal Supriatna Titik Dwi Sulistiyati Wahida Kartika Sari Yunita Aminatus Sholichah Yunita Eka Puspitasari