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KARAKTERISASI SENYAWA AKTIF ANTIBAKTERI EKSTRAK AIR BUNGA KECOMBRANG (ETLINGERA ELATIOR) SEBAGAI BAHAN PANGAN FUNGSIONAL Sukandar, Dede; Radiastuti, Nani; Jayanegara, Ira; Hudaya, Adeng
Jurnal Kimia Valensi Jurnal Valensi Volume 2, No.1, November 2010
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Syarif Hidayatullah State Islamic Uni

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (596.662 KB) | DOI: 10.15408/jkv.v2i1.232

Abstract

Telah dilaporkan penelitian mengenai aktivitas antimikroba ekstrak air bunga kecombrang(Etlingera elatior). Penelitian ini bertujuan memberikan bukti ilmiah keunggulan tanamankecombrang sebagai bahan pangan fungsional.. Pengujian aktivitas antibakteri dilakukanmenggunakan metode difusi cakram dan analisa komponen kimia dengan kromatografi GCMS.Ekstrak air bunga kecombrang bersifat antibakteri terhadap E. Coli (zona hambat 4,8mm/konsentrasi 60%) dan S. Aureus (zona hambat 6,87 mm, konsentrasi 20%). Ekstrak air bungakecombrang memiliki komponen utama1-dodekanol (tR=11,60, area=11,73, kemiripan 95 %), 3-metil-1-okso-2-buten 1-(21,41, 51-trihidroksi fenil) (tR=13,02, area=3,17 kemiripan 57 %) dan 1-tetradekena (tR= 13,26, area=6,03, kemiripan 98 %.
KAJIAN KUALITAS BRIKET BIOMASSA DARI SEKAM PADI DAN TEMPURUNG KELAPA Qistina, Idzni; Sukandar, Dede; Trilaksono, Trilaksono
Jurnal Kimia Valensi Jurnal Kimia VALENSI Volume 2, No. 2, November 2016
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Syarif Hidayatullah State Islamic Uni

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1085.784 KB) | DOI: 10.15408/jkv.v2i2.4054

Abstract

Abstrak Biomassa seperti sekam padi dan tempurung kelapa dapat menjadi sumber bahan baku briket sebagai salah satu energi alternatif pengganti bahan bakar fosil (minyak bumi).Penelitian ini bertujuan untuk mengkaji kualitas briket sekam padi dan tempurung kelapa melalui proses semi-karbonisasi pada temperatur antara 50-125 0C dengan durasi waktu proses 50-120 menit. Proses pembuatan briket meliputiproses semi-karbonisasi, pencampuran biomassa dengan perekat, pencetakan, pengeringan, dan uji kualitas briket. Pengujian kualitas briket meliputi analisis briket yaitu nilai kalor, kadar air, fixed carbon, volatile matter, abu, dan analisis ultimat. Disamping itu juga dilakukan uji kuat tekan, pengukuran emisi gas, dan uji termal briket yang dihasilkan.Hasilnya menunjukkan penurunan kadar air bahan baku briket sekam padi dan tempurung kelapa membutuhkan energi masing-masing 8.54% dan 4.97% dari proses karbonisasi murni yang menghasilkan semi arang. Nilai kalor briket sekam padi maupun tempurung kelapa mengalami penurunan masing-masing 9.72% dan 7.21% jika dibandingkan dengan bahan bakunya.Gas emisi dari briket sekam padi dan tempurung kelapa yaitu gas NOx, SOx, CO, dan hidrokarbon (HC) masih di bawah baku mutu yang dipersyaratkan. Hasil uji termal briket menunjukkan efisiensi termal briket sekam lebih baik dibandingkan briket tempurung kelapa dengan nilai efisiensi masing-masing sebesar 31.13% dan 22.28%. Kata kunci: Briket sekam padi, briket tempurung kelapa, semi karbonisasi, emisi gas, efisiensi termal. Abstract   Biomass energy, among others, rice husk and coconut shell can be an alternative energy source to replace fossil fuels (petroleum). This study aims to assess the quality briquettes rice husk and coconut shell with raw materials through semi-carbonization process at a temperature between 50-125 0C with a duration of 50-120 minutes of processing time. Briquetting process meliputu semi-carbonization, refining raw materials and sieving made passes restrained 30 mesh and 30 detained 50 mesh. Then do the mixing biomass with adhesive, printed, dried and tested briquette quality test. Briquette quality testing consists of the analysis of the characteristics of briquettes are calorific value, moisture content, fixed carbon, volatile matter, ash, and the ultimate analysis. Besides, it also conducted compressive strength test, the measurement of gas emission, and thermal test briquettes were produced. The results show a decrease in raw material briquettes moisture content of rice husk and coconut shell on semi karbonization process requiring respectively 8.54% and 4.97% of the energy of pure carbonization process which produces semi charcoal. Calorific value briquettes rice husk and coconut shell fell respectively 9.72% and 7.21% when compared to the raw material. The quality of biomass briquettes is based on the results of the analysis of the characteristics and compressive strength test briquettes showed that coconut shell briquettes better quality than the rice husk briquettes. Briquettes gas emissions from rice husks and coconut shells are gas NOx, SOx, CO and hydrocarbons (HC) is still below the quality standards required. The test results demonstrate the thermal efficiency of thermal briquettes rice husk briquettes for 31.13% and better than coconut shell briquettes by 22.28%. Keywords: Briquette rice husk, coconut shell briquettes, semi-carbonization, gases,thermal efficiency DOI: http://dx.doi.org/10.15408/jkv.v0i0.4054
KARAKTERISTIK COOKIES BERBAHAN DASAR TEPUNG SUKUN (ARTOCARPUS COMMUNIS) BAGI ANAK PENDERITA AUTIS Sukandar, Dede; Muawanah, Anna; Amelia, Eka Rizki; Basalamah, Widad
Jurnal Kimia Valensi Jurnal Valensi Volume 4, No.1, Mei 2014
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Syarif Hidayatullah State Islamic Uni

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (127.981 KB) | DOI: 10.15408/jkv.v4i1.1047

Abstract

Abstrak Tepung sukun (Artocarpus communis) merupakan tepung yang bebas gluten sehingga baik digunakan sebagai alternatif dalam pembuatan cookies untuk anak penderita autis. Penelitian ini bertujuan mengetahui tingkat kesukaan panelis terhadap cookies sukun dan berbagai formulasinya dibandingkan dengan cookies berbahan dasar tepung lain yang meliputi pengaruh penambahan bahan tambahan terhadap sifat kimia, fisika, daya terima cookies sukun, kadar kalsium dan fosforus cookies sukun, dan mengetahui cookies sukun tersukai memenuhi standar mutu cookies menurut SNI 01-2973-1992 atau tidak. Uji organoleptik dilakukan untuk mengetahui tingkat kesukaan dan penerimaan panelis terhadap cookies sukun dibandingkan dengan cookies berbahan dasar tepung lain (terigu, beras, sagu) dan cookies sukun dalam berbagai formulasi. Parameter yang digunakan meliputi warna, aroma, tekstur, rasa dan penerimaan keseluruhan. Uji kadar kalsium dilakukan menggunakan spektroskopi serapan atom pada ? 422.7 nm dan kadar fosforus menggunakan spektroskopi UV-Vis pada ? 880 nm. Data yang diperoleh dianalisis menggunakan analisis sidik ragam anova dan analisis Duncan. Cookies sukun memiliki penerimaan yang rendah dibandingkan cookies tepung lain berdasarkan penerimaan rasa dan penerimaan umum. Formulasi cookies sukun memperbaiki sifat fisik (aroma, rasa, warna, dan tekstur) dan daya terima cookies sukun oleh panelis. Cookies sukun tersukai adalah formulasi 718 dengan bahan tambahan susu kedelai.  Mutu cookies sukun tersukai formulasi 718 sesuai dengan SNI 01-2973-1992 kecuali kadar protein yang masih rendah 8.05% dan terdapat kandungan tembaga dengan sebesar 1.56 ppm. Cookies sukun tersukai memiliki kadar kalsium dan fosforus tertinggi dibandingkan dengan tepung sukun dan cookies komersil untuk anak penderita autis sehingga cookies sukun tersukai sangat baik dikonsumsi oleh anak penderita autis. Kata kunci : Artocarpus communis, autis, cookies sukun, organoleptik, kalsium, fosforus Abstract Breadfruit (Artocarpus communis) has been reported as a functional food ingredient for autistic children. This study aims to determine the level of A panelist on cookies breadfruit and various formulations compared to other flour-based cookies which include the effect of additives on the properties of chemistry, physics, power accept cookies breadfruit, calcium and phosphorus levels cookies breadfruit, breadfruit cookies and find out the most preferred if it meets quality standards according to SNI 01-2973-1992 cookies or not. Organoleptic test was conducted to determine the level of preference and acceptance panelist on cookies breadfruit compared with other flour-based cookies     (wheat, rice, sago) and breadfruit cookies in a variety of formulation. The parameters used include, colour, frageance, texture, flavor and overall acceptance. Calcium level test performed using atomic absorption spectroscopy method at ? 422.7 nm and phosphorus levels using UV-Vis spectroscopy at ? 880 nm. The data were analyzed using analysis of variance anova and Duncan analysis. The test results showed Cookies breadfruit organoleptif have low enrollment compared to other flour cookies views of the average revenue flavor and general acceptance of cookies breadfruit, breadfruit cookies formulations can improve the physical properties (fragrance, flavor, color, and texture) and acceptance of cookies breadfruit by panelists. An increase in the average value of A formulation compared breadfruit cookies before formulation. Cookies are breadfruit tersukai 718 formulations with soy milk additives. Quality breadfruit cookies tersukai 718 formulations in general accordance with SNI 01-2973-1992 except protein content and contained 8.05% Cu content with a small concentration (1.56 ppm). Cookies breadfruit tersukai have the highest levels of calcium and phosphorus compared with breadfruit flour and commercial cookies for autistic children so that the most preferred breadfruit cookies very well taken by autistic children. Keywords : Artocarpus communis, autism, breadfruit cookies, organoleptic, calcium, phosphorus
BIOAKTIVITAS EKSTRAK METANOL DAUN NAMNAM SERTA KOMBINASINYA DENGAN MADU TRIGONA Sumarlin, La Ode; Suprayogi, Agik; Rahminiwati, Min; Tjahja, Achmad; Sukandar, Dede
Jurnal Teknologi dan Industri Pangan Vol. 26 No. 2 (2015): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (491.745 KB) | DOI: 10.6066/jtip.2015.26.2.144

Abstract

Namnam (Cynometra cauliflora L) and trigona honey are two natural ingredients that are potential to be developed in Indonesia. However, scientific evidence of its active compounds and bioactivity is still rarely found, particularly the combination of these two materials. Therefore, this research is to explore their active ingredients of combination of these two materials such as total phenolic, flavonoids, vitamin C and ?-carotene and bioactive capabilities such as antioxidant activity and antibacterial activity. The analysis showed that antibacterial activity of methanol extract of Namnam leaves (EMDN) and trigona honey either in their sole form or combined form has antioxidant and antibacterial activity. The EMDN was more sensitive to Staphylococcus aureus (23.7±3.3 mm) than to Escherichia coli, while the Trigona honey (MT) more sensitive to Escherichia coli (32.6±4.4 mm) than Staphylococcus aureus (16.6±4.1 mm). Similarly, the combination of EMDN and MT was more sensitive to Escherichia coli (23±1.9 mm) than Staphylococcus aureus (17.6±2.6 mm). Analysis of the antioxidant activity also showed that EMDN provided the highest activity (IC50 0.0048±0.000 mg/mL), a combination EMDN and MT (IC50 0.0085±0.000 mg/mL) and MT (IC50 3.736±0.112 mg/mL). Moreover, this analysis also showed thatsole samples of MT and EMDN have total phenolic content, flavonoids, and vitamin C that were higher than the combination of MT and EMDN. However, the content of ?-carotene in the combined form of MT and EMDN was higher. Thus trigona honey, methanol extract of leaves Namnam (Cynometra cauliflora L) in a single form or in a combination are potential to be utilized and developed as a source of antioxidants and antibacterial in the form of functional food.
PEMANFAATAN MINYAK ATSIRI KULIT BUAH HONJE SEBAGAI ANTIOKSIDAN PRODUK SOSIS AYAM Sukandar, Dede; Muawanah, Anna; Rudiana, Tarso; Aryani, Khilda Fithri
Jurnal Teknologi dan Industri Pangan Vol. 28 No. 1 (2017): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (230.091 KB) | DOI: 10.6066/jtip.2017.28.1.20

Abstract

A study on the inhibition of oxidative deterioriation of chicken sausage products added with essential oil from honje (Etlingera elatior) fruit skin was conducted. The purpose of this study was to determine the antioxidative activity of essential oils of fruit peels of honje and its effect on the inhibition of oxidative deterioration of chicken sausage products. The antioxidant activity assay of the  essential oils and chicken sausages added with 0, 50, 100, and 160 µg/mL essential oil was then analyzed. The best formula of chicken sausages was determined by organoleptic test, i.e.a hedonic test on untrained panelists and by the inhibition of oxidative deterioration measured as malondialdehyde content. In addition, analysis of moisture, ash, fat, protein, carbohydrate, metal contamination and microbial contamination of the sausages was also done. The results showed that the essential oil of the honje fruit skin had  an antioxidant activity (IC50) of 21.296 mg/mL, and the best chicken sausages was those added with  µg/mL essential oils. The characteristics of the best chicken sausages complied with SNI 01-3820-1995 sausage quality standard, with water content of 66.75% (w/w); ash content of 1.26% (w/w); fat content of 2.90% (w/w); protein content of 23.10% (w/w); carbohydrate content of 5.99% (w/w); Metal Zn 14.17 mg/kg; Cu 0.65 mg/kg; and no microbial contamination.
IDENTIFIKASI DAN PENENTUAN KADAR SENYAWA FENOL PADA SEDIMEN TAMBAK DI KABUPATEN SIDOARJO Sukandar, Dede; Prihadi, Tri Heru; Hayati, Ai Faziah
Jurnal Kimia Valensi Jurnal Valensi Volume 1, No.4, Mei 2009
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Syarif Hidayatullah State Islamic Uni

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1459.275 KB) | DOI: 10.15408/jkv.v1i4.245

Abstract

Analisis terhadap kadar dan jenis senyawa fenol dalam sedimen tambak yang tercemar dan tidaktercemar oleh air lumpur Lapindo di Sidoarjo, Jawa Timur, telah dilakukan. Penentuan kadarsenyawa fenol dilakukan dengan metode kolorimetri menggunakan reagen Folin Ciocalteau dandianalisis dengan UV-Vis pada panjang gelombang 740 nm. Kadar senyawa fenol yang terdapatdalam tambak tercemar dan tidak tercemar air lumpur Lapindo berbeda secara signifikan. Senyawafenol lebih banyak terdistribusi pada tambak yang tercemar oleh air lumpur Lapindo. Kadarsenyawa fenol yang terdapat dalam masing-masing sampel rata-rata < 1 mg/L. Berdasarkan hasilanalisis secara kualitatif dengan GC-MS, jenis senyawa fenol yang teridentifikasi adalah fenol, 4-klorofenol, butilfenol dan metilfenol. Keempat senyawa tersebut merupakan jenis pencemar yangberbahaya bagi lingkungan perairan.
PERFORMANCE OF MODIFIED NATURAL ZEOLITES BY SODIUM HYDROXIDE TREATMENTS IN THE ESTERIFICATION OF GLYCEROL AND OLEIC ACID Fauzi, Rizky Achmad; Tursiloadi, Silvester; Dwiatmoko, Adid Adep; Sukandar, Dede; Aulia, Fauzan; Rinaldi, Nino; Sudiyarmanto, Sudiyarmanto
Jurnal Kimia Valensi Jurnal Kimia VALENSI Volume 5, No. 2, November 2019
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Syarif Hidayatullah State Islamic Uni

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (841.828 KB) | DOI: 10.15408/jkv.v5i2.9976

Abstract

Esterification is the reaction of the formation of an ester compound by reacting an alcohol compound and carboxylic acid. In this study, the performance of zeolite-based catalysts has been studied for esterification reactions. Modification of zeolite pore size was done to be hierarchical zeolite, with the aim of increasing the catalytic properties of zeolite. The modification was carried out by desilication by sodium hydroxide treatment with a variation of 0.1; 0.3; 0.5 M. The resulting catalyst was then characterized using BET and XRD. Furthermore, the catalyst was tested for activity for esterification of fatty acids and glycerol and the product was analyzed using GC-MS. Zeolite modification with sodium hydroxide has been proven to improve catalyst performance, without changing their crystal structure. The best catalytic activity was obtained on the catalyst with sodium hydroxide treatment of 0.3 M, resulting glycerol conversion of 92% and selectivity to monoglycerides of 74%.
UJI AKTIVITAS ANTIDIABETES FRAKSI ETIL ASETAT DAUN PANDAN WANGI (P. AMARYLLIFOLIUS ROXB.) DENGAN METODE α-GLUKOSIDASE Sukandar, Dede; Sumarlin, La Ode; Zahroh, Hilyatuz; Amelia, Eka Rizki
Jurnal Kimia Valensi Jurnal Valensi Volume 2, No.5, November 2012
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Syarif Hidayatullah State Islamic Uni

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (433.967 KB) | DOI: 10.15408/jkv.v2i5.294

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 ?-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.
KARAKTERISASI SENYAWA AKTIF ANTIOKSIDAN DAN ANTIBAKTERI DALAM EKSTRAK ETANOL BUAH NAMNAM (CYNOMETRA CAULIFLORA L.) Sukandar, Dede; Amelia, Eka Rizki
Jurnal Kimia Valensi Jurnal Valensi Volume 3, No.1, Mei 2013
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Syarif Hidayatullah State Islamic Uni

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (304.635 KB) | DOI: 10.15408/jkv.v3i1.327

Abstract

Telah dilaporkan penelitian untuk mengetahui senyawa yang memiliki aktivitas antioksidan dan antibakteri dalam ekstrak etanol buah namnam (C. cauliflora L.) menggunakan instrumen GC-MS. Hasil analisa GC-MS menunjukkan adanya senyawa 5-hiroksimetilfurfural sebagai komponen utama dalam ekstrak etanol buah namnam. Ekstrak etanol buah namnam memiliki aktivitas antioksidan dengan nilai IC50 sebesar 328,29 ppm dan memiliki aktivitas antibakteri terhadap E. coli dan S. aureus dengan zona hambat masing-masing 16 mm pada konsentrasi 20%.   Kata kunci: uji fitokimia, antioksidan, antibakteri, C. cauliflora L., DPPH dan difusi cakram
ELUSIDASI STRUKTUR KIMIA SENYAWA BIOAKTIF PENGENDALI SERANGGA ULAT KUBIS DARI KULIT BATANG AGLAIA DISOXYLUM (MELIACEAE) Sukandar, Dede; Chairul, Sofnie M; Nurlaela, Nurlaela
Jurnal Kimia Valensi Jurnal Valensi VOLUME 1, NO.1, NOVEMBER 2007
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Syarif Hidayatullah State Islamic Uni

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (693.943 KB) | DOI: 10.15408/jkv.v1i1.207

Abstract

Telah dilakukan penelitian elusidasi struktur kimia senyawa fenol-2-(1-metiletoksi)-metilkarbamat, yang bersifat bioaktif (LC50 = 3,57 ppm) pengendali serangga ulat kubis(Crocidolomia binotalis Zeller) dari ekstrak etil asetat kulit batang Aglaia disoxylum(Meliaceae), salah satu tumbuhan yang dikenal sebagai pasak bumis. Senyawa inidiperoleh berupa kristal tidak berwarna, berbentuk jarum (40 mg), titik leleh 99?101 oC,rumus molekul C11H15NO3 dan BM = 209. Penetapan struktur kimia senyawa tersebutdilakukan berdasarkan data spektroskopi UV-VIS, FTIR, 1H dan 13C NMR, HMQC,HMBC, dan MS (GC-MS).