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All Journal Jurnal Teknologi Dan Industri Pangan VALENSI Jurnal Ilmu Lingkungan AL KAUNIYAH Alchemy : Journal of Chemistry Bulletin of Chemical Reaction Engineering & Catalysis Proceeding International Conference on Global Resource Conservation JITRO (Jurnal Ilmiah dan Teknologi Peternakan Tropis) Elkawnie EduChemia: Jurnal Kimia dan Pendidikan ALCHEMY Jurnal Penelitian Kimia Jurnal Kimia Terapan Indonesia Jurnal Riset Sains dan Kimia Terapan Journal of Social Research Bulletin of Chemical Reaction Engineering & Catalysis al Kimiya : Jurnal Ilmu Kimia dan Terapan
Dede Sukandar
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Social Sciences Veterinary Other

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AKTIVITAS ANTIDIABETES EKTRAK ETIL ASETAT DAUN PANDAN WANGI (Pandanus amaryllifolius Roxb.) Dede Sukandar; Sandra Hermanto; Imamah Al Mabrur
Jurnal Kimia Terapan Indonesia Vol 12, No 2 (2010)
Publisher : Research Center for Chemistry - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2853.89 KB) | DOI: 10.14203/jkti.v12i2.215

Abstract

This research done to know activity antidiabetes from fragrant screw pine leaf ethyl acetate extract (Pandanus amaryllifolius Roxb.) applies method aglukosidase. Extract is made by the way ofmaceration to apply ethyl acetate. Test antidiabetes is done by using enzyme a-glukosidase and PNP-a-D-glukopiranosida. Fragrant screw pine leaf ethyl acetate extract haves the character of antidiabetes with resistance activity, IC50 value as 94,23 ppm. Result of GCMS identification shows fragrant screw pine leaf ethyl acetate extract contains active compound of its the fatty acid and deriuaies, terpenoids, and steroid.Keyword : Antidiabetes, Ekstrak Etil Asetat, Pandanus amaryllifolius Roxb, a-glukosidase, PNP-a-D-glukopiranosida.
UJI POTENSI AKTIVITAS ANTI KANKER EKSTRAK DAUN PANDAN WANGI (Pandanus amaryllifolius Roxb.) DENGAN METODE BRINE SHRIMP LETHALITY TEST (BSLT) Dede Sukandar; Sandra Hermanto; Emi Lestari
Jurnal Kimia Terapan Indonesia Vol 11, No 1 (2009)
Publisher : Research Center for Chemistry - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4250.265 KB) | DOI: 10.14203/jkti.v11i1.174

Abstract

Has been done research to know anticancerpotencial activity from fragrant screw pine leaf extractapplies method Brine Shrimp Lethality Test ( BSLT).Extract is made by the way of macerate to apply threekinds of solvent, that is butanol, ethyl acetate, and etherpetroleum. Toxicity test is done by using prawn larvaArtemia salina Leach which age 48 hours. Toxic effecteach extract is identified with presentase death of prawnlarva applies probit analysis (LC50). Active extract thenis tested its the phytochemistry content and compoundbioa1(fi! suggested applies GC-MS. Result of his (itsshowing ethyl acetate extract to have the character oftoxic ( LC50 : 288,4 ppm). The toxic compounds whichpredietion.implied in ethyl acetate extract is terpenoidsand steroid.Keywords: Fragrant Screw Pine Leaf Extract, BSLT, Artemiasalina LFitokimia, and GC-MS
Isolation and Structure Determination of Antioxidants Active Compounds from Ethyl Acetate Extract of Heartwood Namnam (Cynometra cauliflora L.) Dede Sukandar; Siti Nurbayti; Tarso Rudiana; Tsalats Wahyul Husna
Jurnal Kimia Terapan Indonesia Vol 19, No 1 (2017)
Publisher : Research Center for Chemistry - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (719.193 KB) | DOI: 10.14203/jkti.v19i1.325

Abstract

Active compounds with antioxidant activity were isolated from ethyl acetate extract of namnam stem (C. cauliflora L.) that had undergone maceration and fractionation by gravity column chromatography. The compounds were later identified by by using UV-Vis Spectrophotometry, FTIR, LCMS and 1H-NMR. Ethyl acetate extract of namnam stem showed considerably high antioxidant activity (IC50 value 4.68 ± 0.035 ppm). The results of analysis by UV-Vis and FTIR showed carbonyl group conjugated with an aromatic ring at band I (λmax 330.22 nm), chromophore group of alkene (C=C) at band II (λmax 268.67 nm) and functional groups such as O−H (3343.91 cm-1), C=O (1729.23 cm-1), C=C (1652.64 and 1611.99 cm-1), C−O (1269.89) and C−H ortho (738.23 cm-1). LCMS (m/z 270.9246) and 1H-NMR data showed seven proton signals on the aromatic ring at carbon position C-3 at δH 6.86 ppm (1H, s), C-6 at δH 5.95 ppm (1H, d, J=1.95 Hz), C-8 at δH 6.25 ppm (1H, d, J= 1.95 Hz), C-2’ and C-6’ at δH 7.03 ppm (2H, d, J=7.87 Hz), C-3’ and C-5’ at δH 6.87 ppm (2H, d, J= 7.87 Hz) so that the structure was identified as a flavonoid which was 4 ', 5,7-trihydroxy-flavones or known as apigenin. The isolated apigenin had very strong antioxidant activity, as shown by IC50 value of 5.18 ± 0.014 ppm.
UJI AKTIVITAS ANTIOKSIDAN EKSTRAK KASARAIR BUNGA KECOMBRANG (Etlingera elatior) SEBAGAI BAHAN PANGAN FUNGSIONAL Dede Sukandar; Nani Radiastutu; Ira Jayanegara; Anna Muawanah; Adeng Hudaya
Jurnal Kimia Terapan Indonesia Vol 13, No 1 (2011)
Publisher : Research Center for Chemistry - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2653.155 KB) | DOI: 10.14203/jkti.v13i1.124

Abstract

A research of antioksidant activity from water crude extract of kecombrang flower (Etlingera elatior) have been reported. This Research aim to give erudite evidence of kecombrang flower as a functional food. Antioksidant was examined by activity diphenyl picryl hidrazyl ( DPPH) methode and chemicalcomponent analyses using GCMS. Water crude extract of kecombrang flower shows antioxidan activity ( ICso = 61. 6497 ppm) and waspredicted to have component of l-dodekanol, S-metil-l-oxo-lbuten 1-(21,41, 51-trihidroxyl phenil} and 1tetradecene (tR= 13,26, area=6,03, similarity at 98%).Keyword: Kecombrang ( Etlingera elatior), functional food, antioxidant
KARAKT£RISASI SENYAWA AKTIF ANTI BAKTERI MINYAK ATSIRI BUNGA CENGKEH (Syzygium arimaticum) Dede Sukandar; Nani Radiastuti; Khoeriyah Khoeriyah
Jurnal Kimia Terapan Indonesia Vol 12, No 1 (2010)
Publisher : Research Center for Chemistry - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4568.329 KB) | DOI: 10.14203/jkti.v12i1.144

Abstract

Water distillation and purification of drought clove (Syzygium arimaticum) interest yields clove interest essential oils 6,5 % (v/w), rust colored ofchocolate, refractive index (25°C) 1,52874, specific mass (25°C) 1,0636 g/ml and condensation in ethanol 70% (1:2) limpid. Oil of clove haves the character of antibacterial to five test bacteriums ( B. subtilis, B. cereus, S. aureus, P. aeroginosa and E. coli). Result of analysis GCMS shows existence of eugenol compound (72,98%), kariaphilena (10,40%), a-humulena (1,04%) and acetate eugenol ( 15,58%). SpectraphotometerJKTI, VOL. 12, No.1, Juni 2010 analysis UV- Vis existence of absorption at Amaks 207,63 nm (ethanol) and 283,76 nm (eugenol). Analysis FTIR existence of bunch - OH (3543,39 em'), aliphatic C-H (1605,79 - 1766,90 em'), aromatic C=C ( 1433,60 - 1514,74 em'), C-Caril (1433,60-1514,74em-I) and cO (1268,44 em'). Keyword: Antibacterial, clove (Syzygium arimaticum) and essential oils.
Uji Aktivitas Antidiabetes Fraksi Etil Asetat Daun Pandan Wangi (P. amaryllifolius Roxb.) Dengan Metode Α-Glukosidase Dede Sukandar; La Ode Sumarlin; Hilyatuz Zahroh; Eka Rizki Amelia
Jurnal Riset Sains dan Kimia Terapan Vol 2 No 1 (2012): JRSKT - Jurnal Riset Sains dan Kimia Terapan, Volume 2 Nomor 1 Juni 2012
Publisher : Program Studi Kimia Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (651.851 KB) | DOI: 10.21009/JRSKT.021.01

Abstract

Telah dilaporkan hasil penelitian untuk mengetahui aktivitas antidiabetes setiap fraksi dalam ekstrak etil asetat daun pandan wangi (Pandanus amaryllifolius Roxb.) secara in vitro menggunakan metode α-glukosidase. Ekstrak dibuat dengan cara maserasi menggunakan pelarut etil asetat dan pemisahan komponen kimia dengan kromatografi lapis tipis (KLT). Hasil KLT dengan fase gerak n-heksan:etil asetat (3:1) dan penambahan 3 tetes asam asetat glasial menghasilkan lima fraksi dengan Rf masing-masing sebesar 0,20; 0,30; 0,55; 0,60; dan 0,70. Fraksi 2 memiliki aktivitas antidiabetes tertinggi dengan nilai IC50 relatif 77,57 ppm.Kata kunci : antidiabetes, fraksi etil asetat, daun pandan wangi, α-glukosidase A research to know antidiabetes activity every fraction in ethyl acetate extract of fragrant screw pine leaf (Pandanus amaryllifolius Roxb.) in vitro applies α-glukosidase method has been reported. Extract made by the way of macerate to apply ethyl acetate solvent. Result of thin layer chromatography (TLC) with mobile phase n-heksan:etil acetate (3:1) and addition of 3 acetic acid drip glasial yields five fractions with Rf each of 0,20; 0,30; 0,55; 0,60; and 0,70. Fraction 2 has highest antidiabetic activity with relative IC50 value 77,57 ppm.Keywords : antidiabetes, fraction of ethyl acetate, fragrant screw pine leaf, α-glukosidase
Profil Senyawa Kimia Minyak Atsiri Sereh Wangi (Cymbopogon nardus L.) Hasil Hidrodistilasi dengan Optimasi Perlakuan Awal Sonikasi Dede Sukandar; Anny Sulaswatty; Imam Hamidi
ALCHEMY Jurnal Penelitian Kimia Vol 18, No 2 (2022): September
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/alchemy.18.2.60007.221-233

Abstract

Telah dilakukan penelitian mengenai profil senyawa kimia minyak atsiri sereh wangi (Cymbopogon nardus L.) hasil hidrodistilasi dengan optimasi perlakuan awal sonikasi, yang bertujuan mengetahui pengaruh perlakuan awal sonikasi terhadap karakteristik dan profil kimia minyak atsiri sereh wangi. Proses perlakuan awal sonikasi dilakukan menggunakan tiga jenis variabel yang berbeda, yaitu waktu sonikasi, solvent feedstock (SF) ratio, dan amplitudo. Hidrodistilasi minyak atsiri sereh wangi dilakukan pada temperatur 116 ‒ 120 ℃ dan waktu distilasi 8 jam. Minyak sereh wangi hasil hidrodistilasi dilakukan uji indeks bias dengan refraktometer, berat jenis dengan piknometer, kelarutan dalam etanol 80% dan ditentukan profil kimianya menggunakan GC-MS. Minyak sereh wangi yang dihasilkan berat jenis 0,9136 g/mL, indeks bias 1,472 ‒ 1,474 dan larut dalam etanol 80%, yang sesuai dengan Standar Nasional Indonesia (SNI) 06-3593-1995. Rendemen minyak atsiri sereh wangi tertinggi 1,62% diperoleh pada waktu sonikasi 60 menit, SF Ratio 20:1(mL/g), dan amplitudo 90%. Perlakuan awal sonikasi telah mempersingkat waktu proses hidrodistilasi 47,54%. Berdasarkan hasil analisa GC-MS komponen kimia utama minyak atsiri sereh wangi yaitu Citronella (13,67%), Citronellol (21,18%), dan Geraniol (21,32%).Chemical Compound Profile of Citronella Essential Oil (Cymbopogon nardus L.) as Hydrodistillation Result with Optimization of Sonication Pretreatment. The research optimization of hydrodistillation using ultrasonic pretreatment of Citronella oil (Cymbopogon nardus L.) has been carried out, which aims to determine the effect of pretreatment of sonication on the characteristics of citronella essential oils. The sonication pretreatment process was done using three different types of variables, including the sonication time variable, SF Ratio, and amplitude. Hydrodistillation was performed at a temperature of 116 ‒ 120 ℃ and a processing time of 8 hours. Citronella oil was characterized by analyzing the results of the refractive index with refractometer, specific gravity with pycnometer, solubility in ethanol 80%, and their chemical components determined by GC-MS. Citronella oil produced has a specific gravity of 0.9136 g/mL, soluble in ethanol 80%, and the refractive index value of 1.472 to 1.474, which are in accordance with Indonesian National Standard (SNI) 06-3593-1995. The highest yield of citronella oil of 1.62% in this study was obtained at a sonication time of 60 minutes, SF ratio of 20:1, and amplitude of 90%. The ultrasonic treatment can shorten the processing time by 47.54%. Based on GC-MS analysis, the major components in citronella essential oil are Citronella (13.67%), Citronellol (21.18%), and Geraniol (21.32%).
Aktivitas Antioksidan Kombinasi Madu Monoflora dengan Ekstrak Daun Namnam (Cynometra cauliflora L.) La Ode Sumarlin; Melina Hadera; Sri Yadial Chalid; Dede Sukandar
ALCHEMY:Journal of Chemistry Vol 6, No 1 (2018): ALCHEMY: JOURNAL OF CHEMISTRY
Publisher : Department of Chemistry, Faculty of Science and Technology UIN Maulana Malik Ibrahim Malan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (517.187 KB) | DOI: 10.18860/al.v6i1.4736

Abstract

Honey and namnam leaves (Cynometra cauliflora L.) have been shown to have antioxidant activity. Combination of both materials potent to be used as functional food. In this study, antioxidant activity of samples was measured by the DPPH method (1,1-diphenyl-2-picrylhydrazyl) (IC50) while total phenolic, total flavonoids, and vitamin C were determinated by UV-Vis spectrophotometry. Honey samples used were commercial packaging rambutan honey (MR), commercial packaging rubber honey (MK), and commercial unpackaging rambutan honey (MR2). The combination ratio of honey and namnam leaves extract was 1:1, 1:2 and 2:1 (b/b). The highest value of total phenolic, total flavonoids, vitamin C and antioxidant activity in namnam leaves extract (N) was 267.690 mg GAE/g, 12.284 mg QE/g, 203.500 mg AA/g and IC50 0.004 mg/mL, respectively. The highest value of total phenolic was 0.588 mg GAE/g in MR2, while the highest value of total flavonoids and antioxidant activity (IC50) were 0.027 mg QE/g and 21.576 mg/mL in in MR, respectively. Combination MR and MR2 with namnam leaves extract (MR-N and MR2-N) with ratio 1:2 gave the highest antioxidant activity with IC50 value 0.005±0.000 mg/mL in both samples. The highest value of total phenolic, total flavonoid, and vitamin C in MR-N and MR2-N was 266.027 mg GAE/g, 9.790 mg QE/g, and 100.33 mg AA/g, respectively. Therefore, the combination is potential as a functional food Madu dan daun namnam (Cynometra cauliflora) telah terbukti memiliki aktivitas antioksidan. Kombinasi kedua bahan ini akan sangat potensial digunakan sebagai pangan fungsional. Pada penelitian ini, antioksidan diukur dengan metode DPPH (1,1-difenil-2-pikrilhidrazil) (IC50), sedangkan total fenolik, total flavonoid, vitamin C menggunakan spektrofotometer UV-Vis. Sampel madu yang digunakan adalah madu rambutan kemasan komersial (MR), madu karet kemasan komersial (MK), dan madu rambutan tanpa kemasan komersial (MR2). Perbandingan kombinasi madu dan ekstrak daun namnam masing-masing 1:1, 1:2 dan 2:1 (b/b). Hasil analisis menunjukkan bahwa total fenolik, total flavonoid, vitamin C dan aktivitas antioksidan tertinggi terdapat pada ekstrak daun namnam (N) masing-masing sebesar 267,690 mg GAE/g, 12,284 mg QE/g, 203,500 mg AA/g dan IC50 0,004 mg/mL. Kandungan total fenolik tertinggi pada sampel madu adalah MR2 sebesar 0,588 mg GAE/g, sedangkan total flavonoid dan aktivitas antioksidan tertinggi pada MR yaitu 0,027 mg QE/g dan IC50 21,576 mg/mL. Sampel MR dan MR2 kombinasi dengan ekstrak daun namnam (MR-N dan MR2-N) dengan perbandingan 1:2 memberikan aktivitas antioksidan tertinggi dengan nilai IC50 sebesar 0,005 ± 0,000 mg/mL. Total fenolik, total flavonoid, dan vitamin C tertinggi  pada kombinasi MR-N dan MR2-N masing-masing sebesar 266,027 mg GAE/g, 9,790 mg QE/g, dan 100,33 mg AA/g. Oleh karena itu, kombinasi tersebut potensial sebagai pangan fungsional
Antioxidant and Cytotoxicity Activities of the Fermentation Extract of the Endophytic Fungi from the Marine Biota of Colt Coral Dede Sukandar; Nina Artanti; Ika Restu Purwanti; Tarso Rudiana; Fitriyanti Fitriyanti
ALCHEMY:Journal of Chemistry Vol 9, No 2 (2021): ALCHEMY JOURNAL OF CHEMISTRY
Publisher : Department of Chemistry, Faculty of Science and Technology UIN Maulana Malik Ibrahim Malan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/al.v9i2.11899

Abstract

Indonesia has the largest and most biodiverse coral reef in the world. Colt coral has not been studied and explored especially endophytic fungi associated with the coral. Endophytic fungi are highly potential for the production of antioxidant and anticancer compounds. This research aimed to study the antioxidant and cytotoxic activities of fermentation extract from endophytic fungi from colt coral. Filtrate and mycelium extracts were obtained from static and shake fermentations of isolate SKF 15. Antioxidant and cytotoxic assays were conducted by free radical scavenger 1,1-diphenyl-2-picrylhydrazyl (DPPH) and AlamarBlue methods, respectively. The result showed that FD extract provided the highest antioxidant activity with inhibition of 49.36% at 200 ppm of DPPH. Variation of fermentation time (3-21 days) demonstrated the highest activity with inhibition of 66.97% for antioxidant assay (7 days) and 81.13% for cytotoxic assay (3 days). FTIR analysis presented the existence of hydroxyl groups O-H (3452.58 cm-1), C=C groups (1668.43 cm-1); C-O hydroxyl group (1230.58 cm -1), and C-H sp3 groups (2941.44 cm-1). Based on LC-MS analysis, FD extract has a mass of m/z 305.63, [M+H]+, predicted as dihydroquercetin (C15H24O7). Keywords: Antioxidant assay, cytotoxic assay, endophytic fungi, colt coral, DPPH method, AlamarBlue method
The Role of PAI Teachers in The Implementation of Inclusive Education at SMAN 6 Bandung Dede Sukandar
Journal of Social Research Vol. 2 No. 1 (2022): Journal of Social Research
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/josr.v2i1.405

Abstract

Background: In the learning process, the presence of a teacher is very important and will not be replaced by a parent. Profession as teacher is a very noble profession because teachers have a very large responsibility to their students. In general, the role of an Islamic teacher is as an educator, advisor, supervisor, leader, motivator, administrator, and evaluator. Objective: This study aims to determine the extent of the role of teachers in implementing inclusive education services at SMAN 6 Bandung. Method: The type of research used in this study is field research. The data collection techniques are observation and interviews. The subjects in this study were PAI teachers, BK teachers, and students with disabilities. Result: The results of this study show that the role of teachers in implementing individual inclusion education has tried their best, but still needs more support from the principal to include all teachers at SMAN 6 Bandung in seminars or workshops about disability services in regular schools. Conclusion: From the presentation above, it shows that in the implementation of inclusive education organized by SMAN 6 Bandung, there is still a lack of participation of teachers in participating in seminars or workshop activities regarding inclusion education, so knowledge about education for students with disabilities has not been thoroughly known by teachers.
Co-Authors A Sa’duddin A.S. Satyaningtijas Abbas, Jamillah Achmad Tjahja Adawiah Adawiah Adawiah Adawiah adawiah adawiah, adawiah Adeng Hudaya Adeng Hudaya Adid Adep Dwiatmoko Agik Suprayogi Agustino Zulys Ahmad Fathoni Ahmad Tjahja Nugraha, Ahmad Tjahja Ai Faziah Hayati Alfindah Rusanti Amri, Ghulam Fathul Andriyani, Leni Anna Muawanah Anny Sulaswatty Bale, Uly Fitria Chitta Putri Novianti Dasumiati Dasumiati Eka Rizki Amelia Eka Rizki Amelia Eka Rizki Amelia Eka Rizki Amelia Eka Rizki Amelia Eka Rizki Amelia Elda Suci Yala Merru Emi Lestari Emi Lestari Eva Silvia Fadhilla, Rizka Fadhilla, Rizkha Farishi, Salman Fauzan Aulia Fauzih, Dewi Fitria, Shella Fitriyanti Fitriyanti Fuady Hanief Habibah, Nurfitriany Hadriyani, Rizka Hendrawati Hendrawati Hilyatuz Zahroh Hilyatuz Zahroh Ibnu Umarudin Umedi Idzni Qistina Ika Amalia, Ika Ika Restu Purwanti Imam Hamidi Imamah Al Mabrur Imamah Al Mabrur Ira Djajanegara Ira Djajanegara Ira Jayanegara Ira Jayanegara Isalmi Aziz Khilda Fithri Aryani Khoeriyah Khoeriyah La Ode Sumarlin Lailatul Badriyah Lia Pratiwi Melina Hadera Muhamad Zaenudin Nanda Saridewi, Nanda Nani Radiastuti Nani Radiastuti Nani Radiastutu Nina Artanti Nino Rinaldi Nurhasni Nurhasni Nurlaela Nurlaela Rahminiwati, Min Ramadhan, Fitri Nur Rina Ningtiyas Rista Kurnia Dewi Rizky Achmad Fauzi Saeful Rohman Sandra Hermanto Septyani Nurichawati Sihono Sihono Silvester Tursiloadi Siti Nurbayti Siti Nurbayti Siti Nurbayti Sofnie M Chairul Sri Yadial Chalid Sudiyarmanto Sudiyarmanto Syarifah Utami Tarso Rudiana, Tarso Teguh Wahyono Tiah Maharani Tri Heru Prihadi Trilaksono Trilaksono Tsalats Wahyul Husna Tulhusna, Latifah Wahyudin Wahyudin Wawan Rustyawan Widad Basalamah Widhi Kurniawan Yulyani Nur Azizah