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Browsing Chemical by Author "Yuharmen"

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BIOSINTESIS NANOPARTIKEL PERAK MENGGUNAKAN EKSTRAK AIR RIMPANG LENGKUAS (Alpinia galanga) DENGAN BANTUAN SHAKER SERTA UJI AKTIVITAS ANTIBAKTERI

Chalish, Dhia Tijani Al; Haryani, Yuli; Yuharmen (2016-10-12)

The aim of this study was to determine the ability of Alpinia galanga aqueous extract as reducing agent for the synthesis of silver nanoparticles. AgNO3 10-3 M solution was reduced using the extract at room temperature ...
IDENTIFIKASI DAN UJI AKTIVITAS TOKSISITAS EKSTRAK n-HEKSANA DARI KULIT BATANG TUMBUHAN Xylopia malayana Hook. f.et Thomson (ANNONACEAE)

Amenda, A.; Teruna, H. Y.; Yuharmen (2014-03-27)

The plant family of Annonaceae spreads out widely in Indonesia. This family is best known for its secondary metabolite resource. Xylopia malayana, a species of Annonaceae can be found in Pekanbaru. The objective of this ...
IDENTIFIKASI DAN UJI TOKSISITAS EKSTRAK METANOL DARI DAUN TANAMAN SIRSAK (Annona muricata L)

Juliani, R.; Yuharmen; Teruna, H. Y (2014-03-27)

Soursoup (Annona muricata L) was used in herbal medicine. This Annonaceae family member contains alkaloids, tannins, and several other chemical constituents, including asetogenin that allegedly to have ...
IDENTIFIKASI DAN UJI TOKSISITAS EKSTRAK N-HEKSAN DARI KULIT BIJI TANAMAN SIRSAK (Annona muricata L)

Giawa, P. N.; Yuharmen; Teruna, H. N. (2013-07-02)

Annona muricata is a plant which is used as traditional medicine in Indonesia. Isolation from seed coat of Annona muricata has been done using macerating method with n-hexane and then it was fractionated by column ...
ISOLASI DAN UJI AKTIVITAS ANTIBAKTERI SENYAWA METABOLIT SEKUNDER DARI F3 (V3-6) EKSTRAK n-HEKSANA BATANG SEMBUKAN (Paederia scandens)

Dewi, Mirna Wati; Teruna, Hilwan Yuda; Yuharmen (2016-10-19)

Sembukan or kasembukan often called kentut-kentut leaves (Paederia scandens) belonging to family Rubiaceae is one of medicinal plant species in Indonesia. Phytochemical test showed that the stem of this plant contains ...
ISOLASI DAN UJI AKTIVITAS ANTIJAMUR SENYAWA METABOLIT SEKUNDER DARI EKSTRAK METANOL KULIT BATANG Goniothalamus sp. (ANNONACEAE)

Adelia, Ezra Tio; Teruna, Hilwan Yuda; Yuharmen (2016-05-02)

The aim of this study was to isolate the secondary metabolites of the stem bark of Gonoiothalamus sp. and to determine antifungal activity of methanol extract. The methanol extract was fractionated using column chromatography. ...
ISOLASI DAN UJI AKTIVITAS ANTIMIKROBA SENYAWA METABOLIT SEKUNDER DARI EKSTRAK KULIT MELON (Cucumis melo L)

Nurhidayah; Yuharmen; Teruna, Hilwan Yuda (2016-10-19)

This study aims to determine the presence of secondary metabolites contained in the melon peel and their antimicrobial activity. Sample was extracted by maceration method using hot aquadest (60℃). The gravity column ...
ISOLASI DAN UJI AKTIVITAS ANTIOKSIDAN EKSTRAK n-HEKSAN DARI KULIT BATANG TUMBUHAN Xylopia malayana Hook. f.et Thomson (ANNONACEAE)

Rahmawati, S.; Hendra, R.; Yuharmen (2013-03-08)

Jangkang (Xylopia malayana) is an Annonaceae family which is distributed in some parts of Indonesia, especially in the province of Riau. Some genus of this plant has bioactivity as antimicrobia, antitumor, and anticancer. ...
ISOLASI DAN UJI AKTIVITAS ANTIOKSIDAN SENYAWA METABOLIT SEKUNDER DARI EKSTRAK METANOL KULIT BATANG Goniothalamus sp. (ANNONACEAE)

Ani, Tri Murni; Teruna, Hilwan Yuda; Yuharmen (2016-05-16)

Isolation of methanol extract of the stem bark Goniothalamus sp. (Annonaceae) have been conducted and DPPH method using microplate reader has been performed for antioxidant activity assay. The methanol extract was ...
ISOLASI DAN UJI TOKSISITAS EKSTRAK METANOL DARI DAGING BIJI TANAMAN SIRSAK (Annona muricata Linn)

Murpratiwi, M.; Yuharmen; Balatif, N. (2013-07-20)

Isolation and toxicity test of soursop (Annona muricata L) seed flesh have been done. The isolation of chemical compounds was done by maseration using n-hexane and methanol while its toxicity was determined by Brine Shrimp ...
ISOLASI DAN UJI TOKSISITAS METABOLIT SEKUNDER EKSTRAK n-HEKSANA KULIT BATANG TUMBUHAN Polyalthia pulchra var. angustifolia King (ANNONACEAE)

Yuhendri; Jasril; Yuharmen (2014-03-27)

The secondary metabolites of the stem bark of Polyalthia pulchra were isolated and than their toxicity activity assayed using Brine Shrimp Lethality Test (BSLT) method. The sample was extracted by maceration ...
ISOLASI DAN UJI TOKSISITAS SENYAWA METABOLIT SEKUNDER DARI EKSTRAK n-HEKSANA DAUN TUMBUHAN Polyalthia rumphii (B) Merr. (ANNONACEAE)

Asthary, A. A.; Yuharmen; Teruna, Hilwan Y. (2014-03-27)

Isolation and toxicity test of Polyalthia rumphii leaves have been done. The isolation of secondary metabolites of P. rumphii was carried out by maceration method using n- hexane and methanol. The toxicity test was conducted ...
ISOLASI METABOLIT SEKUNDER DAN UJI TOKSISITAS EKSTRAK n-HEKSANA RIMPANG TANAMAN Alpinia malaccensis Roxb. (ZINGIBERACEAE)

Arvint, Ahmad; Yuharmen; Jasril (2016-05-02)

The secondary metabolites of Alpinia malaccensis rhizomes was isolated and their toxicity activity was assayed using Brine Shrimp Lethality Test (BSLT) method. Isolation the secondary metabolites of this rhizomes was done ...
ISOLASI MINYAK ATSIRI DARI BATANG Alpinia malaccensis Roxb DENGAN HIDRODISTILASI KONVENSIONAL DAN MICROWAVE SERTA UJI AKTIVITAS ANTIMIKROBA

Cahyani, Anita; Yuharmen; Jasril (2017-01-24)

Alpinia malaccensis plants was one of essential oil source which has antimicrobial activity. Isolation of essential oil from Alpinia malaccensis was carried out with traditional hydrodistillation method and microwave ...
ISOLASI MINYAK ATSIRI DAUN KEMANGI (Ocimum sanctum L) CARA KONVENSIONAL DAN MICROWAVE SERTA UJI AKTIVITAS ANTIBAKTERI DAN ANTIOKSIDAN

Anwar, Arief Khaerul; Yuharmen; Zamri, Adel (2016-10-19)

The aim of this study was to isolate essential oils from Ocimum sanctum L leaves by Clevenger-hydrodistillation and microwave-assisted hydrodistillation. Components of the essential oil were then identified using Gas ...
PERBANDINGAN KOMPONEN MINYAK ATSIRI DAUN RUKU-RUKU (Ocimum tenuiflorum L) YANG DIDISTILASI MENGGUNAKAN CLEVENGER-HYDRODISLLATION DAN MICROWAVE- ASSISTED HYDRODISTILLATION SERTA UJI AKTIVITAS ANTIBAKTERI DAN ANTIOKSIDAN

Rismansyah; Yuharmen; Teruna, Hilwan Yuda (2016-05-10)

Microwave-assisted hydrodistillation was developed based on Clevenger-hydrodistillation technique which used microwave as a source of energy in its refining process of essential oil. The purpose of this research was to ...
SINTESIS 3-(4-BROMOFENIL)-1-(NAFTALEN-1-IL)PROP-2-EN-1-ON DARI 1-ASETILNAFTALEN DENGAN 4-BROMOBENZALDEHID

Sari, R. I. P; Yuharmen; Jasril (2014-03-27)

Chalcone of 3-(4-Bromo-phenyl)-1-naphthalen-1-yl-propenone was synthesized by the stirring method in Claisen-Schmidt Condensation with NaOH asthecatalyst.The structure of the compound was confirmed by 1H-NMR,13 C-NMR, ...
SINTESIS DAN UJI ANTIBAKTERI SENYAWA (3E,5E)-3,5-BIS (4-HIDROKSIBENZILIDIN)PIPERIDIN-4-ON

Sari, Tri Endah Tresna; Eryanti, Yum; Yuharmen; Zamri, Adel (2014-03-27)

Curcumin is a colouring agent of Curcuma longa L. Beside the use of it as natural colourant, curcumin has biological activities such as antibacterial. In this research, curcumin analog compound of ...
SINTESIS DAN UJI TOKSISITAS SENYAWA ANALOG KALKON TURUNAN 3’,4’- DIMETOKSI ASETOFENON

Sari, D. W. P.; Zamri, A.; Yuharmen (2014-03-27)

Chalcone is one of secondary metabolites included into the class of flavonoids that are known to have biological activities. Chalcone can be used as an intermediate for synthesizing heterocyclic compounds, such as flavones, ...
SINTESIS DAN UJI TOKSISITAS SENYAWA ANALOG KURKUMIN DARI SIKLOHEKSANON DENGAN KLORO BENZALDEHID

Syofiati, Ria; Eryanti, Yum; Yuharmen (2016-05-10)

Curcumin is one of secondary metabolites of phenolic group which has been known to have biological activity such as anticancer, antioxidant, antidiabetic, and anti-inflammatory. Therefore, curcumin becomes model of target ...

Browsing Chemical by Author "Yuharmen"

Browsing Chemical by Author "Yuharmen"

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