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All Journal EKSAKTA: Journal of Sciences and Data Analysis IJCER (International Journal of Chemistry Education Research) Dharma Bakti IJCR (Indonesian Journal of Chemical Research)
Habibi Hidayat
Department Of Chemistry, Faculty Of Mathematics And Natural Sciences, Universitas Islam Indonesia
Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Environmental Science Materials Science & Nanotechnology Social Sciences Other

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 1 
Identifikasi Morfologi dan Uji Aktivitas Antimikroba Terhadap Bakteri Escherichia coli Dari Fermentasi Buah Markisa (Passiflora sp.) Habibi Hidayat
EKSAKTA: Journal of Sciences and Data Analysis VOLUME 15, ISSUE 1-2, 2015
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/eksakta.vol15.iss1-2.art8

Abstract

Telah dilakukan studi identifikasi bakteri dari buah Markisa dan uji aktivitas antimikroba terhadap bakteri Escerichia coli. Sampel yang digunakan dalam penelitian ini berasal dari buah Markisa, dimana penelitian ini bertujuan untuk mengidentifikasi morfologi bakteri yang tumbuh dalam proses fermentasi buah markisasecara mikroskopik, dan uji aktivitas antimikroba dari hasil fermentasi Markisa (Passiflora Sp.) terhadap bakteri Escerichia coli. Identifikasi morfologi yang dilakukan dengan metode pewarnaan Gram dan uji aktivitas antimikroba dengan menggunakan metode cakram. Hasil yang diperoleh dari terhadap kedua isolat yaitu S1 berbentuk basil dan S2 berbentuk basil dan kokus. Perhitungan jumlah koloni pada pengenceran 10-7 diperoleh S1 sebanyak 16.107 cfu/ml dan S2 sebanyak 30.107 cfu/ml. Uji aktivitas antimikroba terhadap bakteri patogen Escerichia coli selama 1 x 72 jam yaitu isolat S1 diperoleh zona hambat pertumbuhan bakteri sebesar 11 mm, 13 mm dan 15 mm dan isolat S2 sebesar 13 mm, 14 mm dan 16 mm.
Composite of Polylactic Acid/Chitosan/Ag-Hydroxyapatite Synthesized Using Turmeric Leaves Extract-Mediated Silver Nanoparticle and Snail Shell as Antibacterial Material Rahmania Audita; Khoirunisa khoirunisa; Hasna' Azizah Azzahra'; Bambang Hernawan Nugroho; Habibi Hidayat; Is Fatimah
EKSAKTA: Journal of Sciences and Data Analysis VOLUME 2, ISSUE 2, August 2021
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/EKSAKTA.vol2.iss2.art5

Abstract

The development of an antibacterial composite of polylactic acid/chitosan/silver nanoparticle-doped hydroxyapatite has been synthesized. The composite was prepared using the silver nanoparticles (AgNPs) green synthesized by using turmeric (Curcuma longa Linn) leaves extract-mediated AgNPs and snail shell as biogenic calcium for hydroxyapatite synthesis. The precipitation method of hydroxyapatite by the doping of AgNPs was the first step, followed by composting with polylactic acid and chitosan as the polymer binder. Physicochemical characterization of the material was studied by using XRD, SEM, and FTIR analyses, and the antibacterial catalytic performance was examined against Escherichia coli (E. coli). The results showed that the synthesized AgNPs are within the <100 nm range in size and not significantly influence the crystallinity of the Ag/HAp. The composite materials maintained the antibacterial activity against E. coli.
Implementation of Cooperative Learning Model by Greeting and Question Technique to Improve the Learning Outcomes and Activities Students in SMA 1 Bengkulu Habibi Hidayat; Salastri Rohiat; Amrul Bahar
International Journal of Chemistry Education Research VOLUME 3 ISSUE 2, OCTOBER 2019
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcer.vol3.iss2.art3

Abstract

Cooperative learning model is one learning model of activities and interactions between students to motivate each other and help each other in mastering subject matter to achieve maximum achievement. This research was conducted in n cycles. Each cycle is carried out by the changes to be achieved starting from initial reflection to returning to analysis and reflection. The average value of students has increased in each cycle of 50.75 in cycle 1, then increased in cycle 2 that is equal to 52.2 and cycle 3 to 72.75. teacher activity during the chemistry learning process in the classroom for each cycle using the type cooperative learning model with greeting and questions techniques continued to increase namely from an average score of 30 to 34.5 and increased very well in the cycle to 3 which is equal to 42 with good criteria while for student activity the average score of 26 to 31.5 and increased very well in the third cycle that is equal to 39 with good criteria. The conclusion is that the implementation of cooperative learning model with greeting and question techniques can improve the learning outcomes and activities of students in SMA 1 Bengkulu.
PEMANFAATAN EMPING MELINJO MENJADI OLAHAN EMPING MADU DALAM MENINGKATKAN EKONOMI MASYARAKAT DUSUN MAKAMDOWO Habibi Hidayat; Unggul Priyadi; Tatwam Widi; Mochammad Iqbal S; Muhammad Saifudin; Nicolaz Arif F; Luthfi Ali Masykur; Kharisma Wijayanti; Bella Atika Armalinda; Annisa Ayunda Permata S; An’nisa Lutfi Nur A
DHARMA BAKTI Dharma Bakti-Vol 3 No 1-April 2020
Publisher : LPPM IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/dharma.v3i1.2681

Abstract

Makamdowo Hamlet is a hamlet located in Sidomulyo Village, Purworejo District, Purworejo Regency, Central Java. Sidomulyo Village 70% its territory is contoured in hills and 30% of its territory is plain (rice fields). Most of the people in the Makamdowo Hamlet work as laborers and farmers, and some also have small businesses such as emping melinjo, salted eggs, bamboo handicrafts, snacks, and also palm sugar. From these products, most people in Makamdowo Hamlet produce chips from melinjo. Emping melinjo producers only market their products in stalls around Sidomulyo Village and Makamdowo Hamlet or markets around Purworejo. Emping melinjo has the potential to be processed as chips like melinjo chips, besides that to have a higher selling value, the melinjo chips are processed products, namely honey cheese emping. Processed emping into honey cheese emping are processed products of innovation in the creative economy industry that have great opportunities to be traded or can even become superior products originating from Makamdowo Hamlet.
Biochemical Test and Isolation of Antimicrobial Activity From Seeds Starfruit Extract (Averrhoa carambola.L) Habibi Hidayat Hidayat
INDONESIAN JOURNAL OF CHEMICAL RESEARCH (IJCR) VOLUME 2, ISSUE 1-2, 2017
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (350.981 KB) | DOI: 10.20885/ijcr.vol2.iss1.art2

Abstract

Telah dilakukan penelitian tentang uji biokimia dan aktivitas antimikroba dari isolasi ekstrak biji buah belimbing (Averrhoa  carambola.L). Penelitian ini bertujuan untuk mengetahui bagaimana uji biokimia dan aktivitas antimikroba, serta proses isolasi dari ekstrak biji buah Belimbing (Averrhoa  carambola.L).Dari hasil penelitian yang telah dilakukan diperoleh hasil untuk sampel ekstrak biji buah Belimbing (Averrhoa  carambola.L) yaitu BB 36 dan BB 48 memiliki jumlah koloni yaitu 110. 107 cfu/ml dan 126. 107 cfu/ml. Sehingga dapat digunakan sebagai bahan pangan untuk probiotik. Sampel BB 36 dan BB 48 memiliki bentuk morfologi seperti basil (batang) dan merupakan jenis bakteri Gram positif. sampel BB 36 dan BB 48 memiliki resistensi terhadap asam yang cukup baik karena dapat hidup pada pH 2.0 - 6.0. untuk uji aktivitas antimikroba dari sampel BB 36 memiliki zona bening yang lebih luas yaitu pada hari pertama sampai ketiga terus meningkat yaitu sebesar 12 mm, 14 mm dan 16 mm. Sedangkan sampel BB 48 memiliki zona bening yang cukup baik jika dibandingkan dengan antibiotik ampisilin yaitu sebesar 10 mm, 12 mm dan 14 mm.
Co-Authors Amrul Bahar Annisa Ayunda Permata S An’nisa Lutfi Nur A Bambang Hernawan Nugroho Bella Atika Armalinda Hasna' Azizah Azzahra' Is Fatimah Kharisma Wijayanti Khoirunisa khoirunisa Luthfi Ali Masykur Mochammad Iqbal S Muhammad Saifudin Nicolaz Arif F Rahmania Audita Salastri Rohiat Tatwam Widi Unggul Priyadi