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INDONESIA
Biopropal Industri
Published by Kementerian Perindustrian Republik Indonesia
ISSN : -     EISSN : -     DOI : -
Core Subject : Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Industrial & Manufacturing Engineering
Arjuna Subject : -
Articles 5 Documents
 1 
Search results for , issue " Vol 6, No 1 (2015)" : 5 Documents clear
CONVERSION OF (±)-CITRONELLAL AND ITS DERIVATIVES TO (-)-MENTHOL USING BIFUNCTIONAL NICKEL ZEOLITE CATALYSTS Adilina, Indri Badria; Pertiwi, Ralentri; Sulaswatty, Anny
Biopropal Industri Vol 6, No 1 (2015)
Publisher : Balai Riset dan Standardisasi Industri Pontianak

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Abstract

(±)-Citronellal and its derivatives were converted to (-)-menthol by a one-pot reaction system using zeolite based nickel catalysts. The catalysts were prepared by immobilization of nickel on natural zeolite (NZ) or synthetic zeolite (ZSM-5) by a simple cation exchange method. Calcination and hydrogen treatment procedures were able to significantly increase the surface area and pore volume of NZ based catalysts whereas negligible changes in the properties were observed for that of ZSM-5. Catalytic reactions were carried out at 70ºC by stirring the mixture in the air for cyclization of (±)-citronellal to (±)-isopulegol followed by hydrogenation towards the desired (-)-menthol at 2 Mpa of H2 pressure. The Ni/NZ catalyst was able to convert a (±)-citronellal derivative yielding 9% (-)-menthol (36% selectivity) with conversion up to 24%, whereas Ni/ZSM5 catalyst directly converted 65% (±)-citronellal to give 4% menthol (6% selectivity). These zeolite based catalysts are therefore potential materials for the conversion of biomass feed stock to value-added chemicals.
and Antioxidant Activity of Endophytic Fungi from Mahogoni Plant (Swietenia macrophylla King Dompeipen, Edward J; Simanjuntak, Partomuan
Biopropal Industri Vol 6, No 1 (2015)
Publisher : Balai Riset dan Standardisasi Industri Pontianak

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Abstract

Diabetes mellitus is a degenerative disease characterized by hyperglycemia due to insulin insulin deficiency either absoluteor relative. This study was conducted to isolate endophytic fungi from plant twigs mahogany (Swietenia macrophylla King) which active as antidiabetic and antioxidant. Antidiabetic activity conducted by using the α-glucosidase inhibitory and antioxidant activity using free radical reduction method with reagent 2.2-diphenyl-1-picrylhydrazyl (DPPH). Isolation of microbes conducted in the media Corn Meal Malt Agar (CMMA) and Potato Dextrose Agar (PDA) which 7 isolates of fungus in total. Inhibitory activity against α-glucosidase to extract the filtrate and biomass of the isolates A.Sm.2F (72.59 and 92.22%), A.Sm.3F (81.87 and 79.37%), B.Sm.1F (63.40 and 98.84%), B.Sm.2F (65.60 and 62.72%), B.Sm.3F (93.91 and 51.48%), B.Sm.4F (87.48 and 74.64%) thus has potential as an antidiabetic activity. B.Sm.1F was the only isolates active as antioxidants with IC50 of 84.41.
Patchouli Oil Production for Fixative Aromatheraphy: A Case Study Design of Condenser for Steam Distillation Agustian, Egi; Sulaswatty, Anny
Biopropal Industri Vol 6, No 1 (2015)
Publisher : Balai Riset dan Standardisasi Industri Pontianak

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Abstract

Patchouli oil is an important material for aromatherapy industries and made from patchouli leaves by steam distillation. The important parts of steam distillation is condenser. The problem is process of farmers patchouli based on experience not used chemical process of steam distillation cause not effective and efficient. The study was designed of condensers on steam distillation for patchouli leaves. Specification of condenser type is shell and tube, stainless steel material and water as coolant. Tubing sized is ¼ inch with 500 mm of length and 24 pieces. Shell measuring 2.5 inch and 600 mm of length. The performance of condenser gave the efficiency at 94.51%. The process condition of ratio stems to leaves is 5:6 and 4.5 hours was considered ideal for steam distillation. The used of energy is lowest cause the efficiency condenser and yield will be higher. Patchouli oil yield of 2.39% and patchouli alcohol content is 35.65%.
The Application of Encapsulated Gluten on Tapioca Wet Noodle Making Processing Husniati, Husniati; Nurdjanah, Siti; Prakasa, Ryan
Biopropal Industri Vol 6, No 1 (2015)
Publisher : Balai Riset dan Standardisasi Industri Pontianak

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Abstract

Gluten is a specific protein found in wheat and functionally needed to improve its elasticity and texture of carbohydrate-based dough. Gluten, isolated from wheat, can be used in the free-form or encapsulation. The aim of this research was to investigate the effects of encapsulated gluten addition on properties of tapioca for wet noodle production. The parameters studied were texture, sensory, and pasting properties of the noodles. The ratios of encapsulated gluten to tapioca were 97%:3%, 96%:4% and 95%:5%. The results showed that the use of encapsulated gluten as much as 3% w/w gave the best noodle with the characteristics of setback viscosity, low cooking loss and organoleptically preferred by panelists.
Incorporation of Sunflower Oil and d-alpha-tocopherol Effect on Mechanical Properties and Permeability of Corn Starch Composite Edible Film Utomo, Pramono Putro; Salahudin, Farid
Biopropal Industri Vol 6, No 1 (2015)
Publisher : Balai Riset dan Standardisasi Industri Pontianak

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Abstract

Corn starch-based films are inherently brittle and lack the necessary mechanical integrity for conventional packaging. However, the incorporation of additives can potentially improve the mechanical properties and processability of starch films. In this work sunflower oil (SO) and vitamin E (d-alpha-tocopherol) at three levels each (0.05%, 0.1% and 0.15% (w/vtotal)) and (0.18%, 0.36% and 0.54% (w/vtotal)) were incorporated into corn starch films using a solution casting method to improve the mechanical and water vapour transmission rate (WVTR) properties. The addition of SO and vitamin E increased elongation at break of starch-based film while decreased tensile strength and WVTR of starch-based film. The best edible film obtained on addition of sunflower oil concentration of 0.15% and 0.54%, vitamin E with a value of 0.121 mm thickness, tensile strength of 65.38 kg/cm2, elongation at break 14.17% and WVTR 1144 g/m2 24 hours.

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