Browsing Turnitin Report by Author "Erwin, Erwin"
Now showing items 1-20 of 32
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An anthraquinone derivative from Coptospella tomentosa (Blume) root (Merung)
Erwin, Erwin; Dari, Anita K.; Pratiwi, Djihan R.; Bohari, Bohari; Rahmadi, Anton (Foundation for Enviromental Protection and Research, 2020-09-01)Coptosapelta tomentosa (Blume) (Merung) is a type of tropical plants traditionally being used as a medicine by the Dayak tribes in Indonesia. This experiment aims to identify compound in the class of anthraquinone derivative ... -
Antioxidant Assay with Scavenging DPPH Radical of Artocarpus anisophyllus Miq Stem bark extracts and Chemical compositions and Toxicity Evaluation for the Most Active Fraction
Erwin, Erwin; Pratiwi, Djihan R.; Saputra, Iwan; Alimuddin (A and V Publication, 2021-05-01)The purpose of this study was to determine the antioxidant activity of crude extract and their fractions, the content of secondary metabolite types of crude extract, and the chemical content and toxicity of the most active ... -
Biological activities and phytochemicals of Hyptis capitata grown in East Kalimantan, Indonesia
Kusuma, Irawan W.; Rahmadi, Rahmini; Arung, Enos Tangke; Pramono, Arif Y.; Erwin, Erwin; Supomo, Supomo (Open Science Publishers LLP, 2020-03-01)Hyptis capitata is a plant in the family of Lamiaceae used to prevent wound infection and as an antidote for food poisoning by the Bentian people, a local tribe in East Kalimantan, Indonesia. Of the plants in the Lamiaceae ... -
The Development of Learning Media of Acid-Base Indicator from Extract of Natural Colorant as an Alternative Media in Learning Chemistry
Nurhadi, Mukhamad; Wirhanuddin, Wirhanuddin; Erwin, Erwin; Muflihah, Muflihah; Erika, Farah; Intan, Iis; Widiyowati, Widiyowati (American Institute of Physics, 2017)The development of learning media of acid base indicator from extract of natural colorants as an alternative media in chemistry learning; acid-base solution by using creative problem solving model at SMA N 10 Samarinda has ... -
Esterification of oil adsorbed on palm decanter cake into methyl ester using sulfonated rice husk ash as heterogeneous acid catalyst
Hindryawati, Noor; Erwin, Erwin; Maniam, Gaanty P. (American Institute of Physics, 2017-02-15)Palm Decanter cake (PDC) which is categorized as the waste from palm oil mill has been found to contain residual crude palm oil. The oil adsorbed on the PDC (PDC-oil) can be extracted and potentially used as feedstock for ... -
An Evaluation of the Antidiabetic and Antimicrobial Activity of an Ethanolic Extract from Rhizophora mucronata Leaf
Usman, Usman; Pintaka, Kusumaningtyas; Sukemi, Sukemi; Erwin, Erwin (JSK Fakultas Farmasi Unmul, 2023-08)The aim of this research was to determine the antidiabetic and antimicrobial properties of ethanolic extract of Rhizophora mucronata leaves, as well as the phytochemical elements contained in the leaf extract. Extracts ... -
An Evaluation of the Antidiabetic and Antimicrobial Activity of an Ethanolic Extract from Rhizophora mucronata Leaf
Usman, Usman; Pintaka, Kusumaningtyas; Sukemi, Sukemi; Erwin, Erwin (JSK Farmasi Unmul Samarinda, 2023-08)The aim of this research was to determine the antidiabetic and antimicrobial properties of ethanolic extract of Rhizophora mucronata leaves, as well as the phytochemical elements contained in the leaf extract. Extracts ... -
GC-MS profiling and DPPH radical scavenging activity of the bark of Tampoi (Baccaurea macrocarpa)
Erwin, Erwin; Pusparohmana, Widar R.; Sari, Indah P.; Hairani, Rita; Usman, Usman (F1000Research,, 2019-12-01)Background : Tampoi ( Baccaurea macrocarpa) is a tropical rainforest plant that produces edible fruit and is native to Southeast Asia, especially East Kalimantan, Indonesia. Previous research showed that Tampoi potentially ... -
GC-MS profiling and DPPH radical scavenging activity of the bark of Tampoi (Baccaurea macrocarpa)
Erwin, Erwin; Widar Ristiyani, Pusparohmana ,; Indah Permata, Sari ,; Rita, Hairani ,; Usman, Usman (F1000 Research, 2019-12-20)Background : Tampoi ( Baccaurea macrocarpa) is a tropical rainforest plant that produces edible fruit and is native to Southeast Asia, especially East Kalimantan, Indonesia. Previous research showed that Tampoi potentially ... -
Identifikasi Molekuler Jamur Pembusuk kayu dari Pohon kanker Meranti Merah (Shorea smithiana) dan Meranti Kuning (Shorea gibbosa)
Erwin, Erwin (eminar Nasional MAPEKI XII, 2009)By molecular technique, identification of decay fungi isolated from decayed wood of the tree canker of red meranti (Shorea smithiana) and yellow meranti (Shorea gibbosa) have been carried out. In this molecular ... -
Influence of the addition and storage time of crude extract of tea leaves (camellia sinensis l.) toward value of free fatty acid in crude palm oil
Erwin, Erwin; Wahifiyah, Elita; Hairani, Rita; Panggabean, Aman S. (IOP Publising, 2018)The purpose of this study was to determine the effect of the crude extract of tea leaves (Camellia sinensis L.) and storage time on the content of free fatty acid in palm oil. The dried tea leaves were macerated and ... -
ISOLATION AND CHARACTERIZATION OF STIGMASTEROL AND BETA-SITOSTEROL FROM WOOD BARK EXTRACT OF
Erwin, Erwin; Pusparohmana, Widar R.; Safitry, Rizka D.; Marliana, Eva; Usman, Usman; Kusuma, Irawan W. (Rasayan Journal, 2020-12-01)Baccaurea macrocarpa Miq. Mull. Arg. (known locally as Tampoi) is one of the edible fruit plants found in the forests of Borneo. The crude extract of wood bark of Tampoi was partitioned with n-hexane and ethyl ... -
ISOLATION AND MS STUDY OF FRIEDELINOL FROM THE LEAVES OF TERAP (ARTOCARPUS ODORATISSIMUS BLANCO)
Erwin, Erwin; Sulisttyaningsih, Sri; Kusuma, Irawan W. (International Journal of Pharma and Bio Sciences, 2015-01-01)- -
Methyl Ester Production via Heterogeneous Acid-Catalyzed Simultaneous Transesterification and Esterification Reactions
Erwin, Erwin (IOP Publishing Ltd., 2017-01-01) -
Schizophyllum commune as a Ubiquitous Plant Parasite
Erwin, Erwin (2010) -
Synthesis and Charactherization of Chitosan-Tripolyphosphate from Clam Shells (Cerithidea obtusa) and Its Application to Sorption of Cadmium Ion
Anuar, Hajar; Koenarpadi, Soerja; Erwin, Erwin (Mulawarman University Press, 2020-12-07)Synthesis and characterization of chitosan-tripolyphosphate (Chi-TPP) from Clam Shells (Cerithidea obtusa) and its application to sorption of cadmium ion has been researched. The Chi-TPP was synthesized using gelation ... -
Synthesis silver nanoparticles using trisodium citrate and development in analysis method
Arif, Moh. Syaiful; Ulfyah, Rusda; Erwin, Erwin; Panggabean, Aman S. (American Institute of Physics, 2021)Synthesis of silver nanoparticles (AgNPs) and analytical development of silver nanoparticles has been done. AgNPs were making by chemical reduction method using trisodium citrate as a reducing agent. AgNPS was Prepared ... -
Toxicity Assay of Baccaurea motleyana Mull. Arg. Wood Extracts (Rambai) and Chemical Compounds Evaluation for the Most Active Fraction
Erwin, Erwin; Tonapa, Zenthise G.; Alimuddin, Alimuddin (A and V Publication, 2020-11)Baccaurea motleyana Müll. Arg. (known locally as Rambai), as an edible fruit plant, is one of the plants native to tropical rain forest of East Kalimantan. This plant is spread in several Asian regions such as Malaysia, ... -
Turnitin Eva Marliana : ISOLATION AND CHARACTERIZATION OF TERPENOID COMPOUNDS FROM LEAVES OF Macaranga beccariana Merr.
Atmoko, Doni Priyo; Marliana, Eva; Erwin, Erwin (Jurusan Kimia FMIPA UNMUL, 2018)