scholarly journals PEMBUATAN BIODIESEL MINYAK JELANTAH MENGGUNAKAN BIOKATALIS EKSTRAK KASAR LIPASE DARI BIJI KESAMBI (Schleichera oleosa L.)

2020 ◽  
Vol 3 (1) ◽  
pp. 20-25
Author(s):  
M A Nenobahan ◽  
M E. S Ledo ◽  
M Nitsae
Keyword(s):  
Schleichera Oleosa

Biodiesel merupakan salah satu jenis bahan bakar diesel alternatif  yang ramah  lingkungan, dapat diperbaharui dan dimanfaatkan sebagai bahan pengganti solar/diesel. Minyak jelantah berpotensi sebagai bahan baku pembuatan biodiesel karena mengandung trigliserida dan asam lemak bebas yang dapat dikonversi menjadi metil ester. Umumnya pembuatan biodiesel dihasilkan melalui reaksi esterifikasi,dan transesterifikasi dengan menggunakan katalis kimia dan biologi. Tujuan dari penelitian ini adalah untuk mengetahui proses pembuatan biodiesel menggunakan minyak jelantah dengan biokatalis ekstrak kasar lipase biji kesambi. Tahapan  penelitan yaitu, pemurnian  minyak jelantah, isolasi ekstrak kasar enzim lipase, analisis aktivitas hidrolisis, uji aktivitas transesterifikasi, hidrolisis minyak uji aktivitas esterifikasi, reaksi esterifikasi, pemisahan biodiesel, dan karaterisasi biodiesel. Analisis data yang digunakan adalah analisis data secara deskriptif kuantitatif dan  pada uji aktivitas transesterifikasi dilakukan dengan uji regresi linear berganda. Berdasarkan hasil penelitian diperoleh yaitu densitas 0,8605 g/cm2, viskositas 1.397 mm2/s dan angka asam 0,65 mgKOH/g. Dengan demikian, pembuatan biodiesel minyak jelantah menggunakan biokatalis ekstrak kasar lipase perlu dilakukan dalam upaya pengembangan produksi biodiesel dengan memanfaatan biji kesambi sebagai biokatalis.

scholarly journals Color change and termite resistance of fast-growing tropical woods treated with kesambi (Schleichera oleosa) smoke

2020 ◽  
Vol 66 (1) ◽  
Author(s):  
Yusuf Sudo Hadi ◽  
Muh Yusram Massijaya ◽  
Dodi Nandika ◽  
Wa Ode Muliastuty Arsyad ◽  
Imam Busyra Abdillah ◽  
...  
Keyword(s):  
Color Change ◽  
Acacia Mangium ◽  
Chemical Compounds ◽  
Subterranean Termite ◽  
Subterranean Termites ◽  
Schleichera Oleosa ◽  
Termite Attack ◽  
Wood Resistance ◽  
Tropical Woods ◽  
Anthocephalus Cadamba

Abstract Smoke treatment can be used to enhance wood resistance to subterranean termite attack. In this study, kesambi (Schleichera oleosa) wood was pyrolyzed to produce charcoal. The smoke produced as a by-product of pyrolysis was used to treat sengon (Falcataria moluccana), jabon (Anthocephalus cadamba), mangium (Acacia mangium), and pine (Pinus merkusii) wood samples for 1, 2, or 3 weeks. Following the smoke treatment, the wood specimens were exposed to subterranean termites (Coptotermes curvignathus Holmgren) according to the Indonesian standard 7207-2014 in a laboratory. The color change caused by smoke treatment was observed, and chemical analysis of smoke was also done. The results showed that chemical compounds of kesambi smoke predominantly consisted of acetic acid, phenol, ketones, amines, and benzene. The color of smoked wood became darker, less yellow, and a little redder, while a longer smoking period produced a darker color which was more resistant to termite attack. Smoke treatment enhanced the resistance of wood to subterranean termite attack, and the resistance levels were not significantly different based on the duration of the smoke treatment.

scholarly journals Pengaruh Pemupukan terhadap Panjang Cabang Kesambi (Schleichera oleosa (Lour.) Merr.) dan Produktivitas Lak di KPH Probolinggo

2020 ◽  
Vol 11 (3) ◽  
pp. 183-188
Author(s):  
Noor Farikhah Haneda ◽  
Andi Sukendro ◽  
Yuni Fatmasari
Keyword(s):  
Quality Improvement ◽  
Host Plant ◽  
Foreign Exchange ◽  
Branch Length ◽  
Forest Product ◽  
Plant Quality ◽  
Host Plant Quality ◽  
Average Value ◽  
Schleichera Oleosa ◽  
World Demand

Kesambi (Schleichera oleosa (Lour.) Merr.) is a host plant that becomes priority in lac culture in Indonesia. Shellac is one of the non-timber forest product commodities, which is potential to be one of foreign exchange sources. World demand of shellac is increasing throughout the year so that the improvement of shellac productivity is required to fulfill the demand. One of the alternatives is implementing the fertilization due to host plant quality improvement considering that host plant is the source of nutrient of shellac. The activity of fertilization aims to understand the effect of fertilization dosage to the improvement of the branch length as well as productivity of shellac in KPH Probolinggo. The greatest average value of branch length during three and six months, respectively were 66.48 cm and 83.24 cm. While, the greatest average value of shellac productivity was 84.29 g. The treatment of fertilization in different dosage to the kesambi (Schleichera oleosa (Lour.) Merr.) was not give significant effect to the length of branch as well as shellac productivity. Keywords: fertilization, Kesambi, Shellac

Biological evaluation and isolation, characterization, of novel polyphenol derivatives from Schleichera oleosa (lour) oken, as anti-diabetic agents

2021 ◽  
Vol 17 ◽  
Author(s):  
Soundararajan Muthukrishnan ◽  
Thillai Sivakkumar ◽  
Vigil Anbiah
Keyword(s):  
Fasting Blood Glucose ◽  
Ethanolic Extract ◽  
Biological Evaluation ◽  
Diabetic Rats ◽  
Spectral Studies ◽  
Diabetic Rat ◽  
Drug Candidate ◽  
Aqueous Extracts ◽  
Altered Level ◽  
Schleichera Oleosa

Background: The exhibit, the treatment for diabetes, for the most part, involves insulin and different oral hypoglycemic drugs. In chronic treatment medications are losing viability, therefore searching of more effective and safer natural anti-diabetic agents has continued to be an important area of investigation Objective: The present study aimed to investigate the effect of ethanolic and aqueous extracts of Schleichera oleosa (S.oleosa) in diabetic rats and isolate and characterize the active compound from an effective extract. Method: The ethanolic and aqueous extracts were administered orally (200 and 400 mg/kg, for 28 days) to streptozotocin-nicotinamide-induced diabetic rats. Hypoglycemic effects, OGTT, alteration in body weight, lipid profile, biochemical parameters, hepatic enzymes and histopathological examination were assessed. Then isolate the active constituents from effective extract using column chromatography and preliminary structure features were investigated by FT-IR, 1H NMR, 13C NMR and LC/MS. Results: The extracts treated rats showed a significant reduction in the fasting blood glucose level (FBGL), total cholesterol, triglycerides, LDL, VLDL and stress markers (MDA, SGOT, SGPT) and significant increase in the concentrations of HDL and bodyweight when compared to the diabetic rat. And also the extract restored the altered level of antioxidant enzymes and glucose metabolizing hepatic key enzymes to close normal level. Histopathological evaluation of the pancreas revealed the regeneration of the β-cells in diabetic rats which was earlier necrosed by streptozotocin. In this study, an active constituent SMK/SO/01 isolated from effective ethanolic extract and spectral studies confirmed that it’s belonging to the polyphenolic category. Conclusion: These findings provide scientific evidence that SMK/SO/01 has to be a potential drug candidate for diabetes mellitus and its complication. Also, these results prove that S.oleosa leaves of ethanolic extract is an effective anti-diabetic activity which provides the scientific proof for the folklore medicine

scholarly journals EVALUATION OF ANTIOXIDANT AND ANTIBACTERIAL ACTIVITIES OF FRESH AND FREEZE-DRIED SELECTED FRUIT JUICES

2017 ◽  
Vol 10 (9) ◽  
pp. 156 ◽  
Author(s):  
Naritsara Toobpeng ◽  
Pannapa Powthong ◽  
Pattra Suntornthiticharoen
Keyword(s):  
Antioxidant Activity ◽  
Antibacterial Activity ◽  
Pathogenic Bacteria ◽  
Antibacterial Activities ◽  
Fruit Juices ◽  
Fresh Fruit ◽  
Total Phenolic ◽  
Zone Of Inhibition ◽  
Schleichera Oleosa ◽  
Freeze Dried

  Objective: The objective of this investigation was to assess the biological activity of fresh fruit juices and freeze dried fruit juices including antioxidant and antibacterial activity.Methods: The fruits used in this study were Schleichera oleosa (Lour.) Oken, Carissa carandas L., and Sandoricum koetjape (Burm.f.) Merr. The fresh juice sample (FJS) was extracted and also prepared for freeze drying sample (FDS) by freeze dryer. The antioxidant capacity of FJS and FDS was assessed using the 2,2-diphenyl-1-picryl-hydrazyl (DPPH) assays and determination for total phenolic contents (TPCs) by Folin–Ciocalteu’s reagent. Antimicrobial tests were carried out by agar diffusion methods and evaluated by measuring the zone of inhibition against 10 isolates of pathogenic bacteria.Results: The highest antioxidant activity of FJS and FDS was found in S. oleosa and related to the scavenging effect on DPPH radical of FJS (100% concentration) and FDS (200 mg/ml) was found in the value of 93.05±0.31% and 82.18±0.33%, respectively. TPC of FJS and FDS from S. oleosa at the same concentration as in the DPPH assay was 1,003.53±1.96 ug GAE/300 g of matter and 827.77±23.15 ug GAE/100 ml of matter, respectively. Both FJS and FDS revealed antibacterial activity. The zone of inhibition of FJS was ranging from 8.3±0.6 to 24.0±1.0 mm and FDS values of 7.3±0.5-21.0±0.9 mm. The most potent sample against bacteria was FJS and FDS from S. oleosa which FJSs against Escherichia coli ESBL and FDS against Pseudomonas aeruginosa MDR2.Conclusion: Fruit juices of S. oleosa, C. carandas, and S. koetjape associated with antioxidant activity in the form of both fresh fruit juices and FDS. The result of this study showed that the value of DPPH and TPCs were slightly decreased in FDS compare with fresh juice. Screening of FJS and FDS of C. carandas revealed broad spectrum antibacterial activity. However, FJS of S. oleosa and S. koetjape showed inhibition of growth of bacteria, but few of FDS from these fruits could inhibit limited bacterial isolates. For antibacterial activity against pathogenic bacteria, the samples of fresh and freeze dried exhibited a different degree of activity.

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