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All Journal Jurnal Penelitian Saintek Journal of Environmental Engineering and Sustainable Technology Jurnal Pembangunan dan Alam Lestari The Journal of Pure and Applied Chemistry Research JKPK (Jurnal Kimia dan Pendidikan Kimia)

Budi Kamulyan

Faculty Of Mathematics And Sciences, University Of Brawijaya, Malang

Author-ID : 3020766

Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Energy Environmental Science Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology

Published : 7 Documents Claim Missing Document

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Articles

Biosorption of Lead(II) using Trichoderma viride in the Aqueous Solution Rensani Taloin; Anna Safitri; Sasangka Prasetyawan; Budi Kamulyan; Ulfa Andayani
The Journal of Pure and Applied Chemistry Research Vol 7, No 1 (2018): Edition January-April 2018
Publisher : Chemistry Department, The University of Brawijaya

Lead(II) is considered as the main cause of pollutant that is toxic, corrosive, and irritant. One method that can be applied for reducing Pb(II) in the environment is by using microorganisms. In this work, the study of biosorption of Pb(II) in the water samples was conducted using Trichoderma viride. The research is focused on determination of optimum conditions including pH, biosorption time, and initial concentration of Pb(II) used. The profiles in functional groups contained in the T. viride have been monitored using FT-IR spectrophotometry. Results showed that the maximum biosorption of Pb(II) achieved at pH 4.5, with equilibrium of contact time of 20 h, optimum concentration of 50 mg/L, and adsorption capacity of 85 mg/1x106 T. viride colonies. The FTIR results indicated that biosorption process changed the functional groups in the T. viride. These have shown in the absorption bands at ~3200 cm-1, ~2850 cm-1, ~2260 cm-1, ~1650 cm-1, ~1450 cm-1, 1180 cm-1, and in the finger printing regions. The biosorption mechanism was proposed through the adsorption process between positively charged metal ions and the negative charge on the functional groups, such as -COO-, -OPO32-, and –NH2-, on the cell surface.

OPTIMIZATION OF BISULFIT SALT CONCENTRATION ON COCONUT QUALITY CONTROL OF COCONUT Ellya Indahyanti; Budi Kamulyan; Bambang Ismuyanto
Jurnal Penelitian Saintek Vol 19, No 1: April 2014
Publisher : Institute of Research and Community Services, Universitas Negeri Yogyakarta

Bisulphite salt is an additive that usualy added into foodstuff, it was used in order to take a preservation effects. In this research, it was added into coconut sap. The aim of this research was to study the effects of sodium bisulphite adding for increasing coconut sap quality, including pH, reducing sugar and sucrose content. In addition, the rate of sucrose hydrolysis with and without bisulphite have been compared. The volumetric method, i.e Lane-Eynon procedure was used for determining the sugar contents while the hydrolysis rates were measured by polarimetry. The results showed that bisulphite added into coconut sap could repress sucrose hydrolysis.

POLY FRACTION (TRIMETILEN-BASED) FROM MONOMER RENEWABLE ONLY SOLUTION AND DECREASE TEMPERATURE Diah Mardiana; Bambang Poerwadi; Budi Kamulyan; Siannita Chandra
Jurnal Penelitian Saintek Vol 19, No 1: April 2014
Publisher : Institute of Research and Community Services, Universitas Negeri Yogyakarta

Poly(trimethylene-sebacate), polyester material from glycerol and castor oil monomer resources, have been synthesized. Fractionation using suitable solvent-non solvent composition could be produced the pure polymer. In this experiment dissolution methods were modified by reduced temperature. In order to choose the suitable solvent and its composition, it was monitored by the turbidity, while the effect of reduced temperature were analysed based on poly(trimethylene-sebacate) mass and several physical properties of product. Result showed that the suitable solvent and non solvent were chloroform and methanol, respectively. As with out reduced temperature, the volume composition was 1 : 10, while temperature modified could be reduced 50% of methanol used. Furthermore, concentration of poly(trimethylene-sebacate) of 3% using volume composition of 1 : 5 at temperature of 20-22 oC , it was yielded 48.4% of product. It has melting point of 52 C with intrinsic viscosity of 10.89 mL/g, Mn 2632 g/eq and degree of crystalinity was 30.5%.

THE USE OF CITRIC ACID MODIFIED BACTERIAL CELULLOSE AS AN ENVIROMENTALLY FRIENDLY ADSORBENT Diah Mardiana; Ani Mulya Suryani; Budi Kamulyan; Nur Lailatul Rahma
Journal of Environmental Engineering and Sustainable Technology Vol 5, No 1 (2018)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Brawijaya

AbstractThe use of nata de coco as an ester cellulose raw material through esterification using various of carboxylic acids has been widely conducted. In this study, it was used citric acid with three carboxyl groups. This aim research were to determine the optimum reactant composition and to compare the cellulose citrate properties toward bacterial cellulose and commercial ester cellulose. Esterification at mass ratio of nata : citric acid were 1 : 1 up to 1 : 9 were conducting at temperature of 150oC. The optimum ester cellulose produced, were then characterized based on the FTIR spectrophotometry, hydrophobicity and degree of crystallinity. Furthermore, the surface area has been determined in order to find out its potency as an adsorbent .The result revealed that reaction using citric acid has affect on chemical structure and hydrophobicity. The increase of hydrophobicity and degree of crystallinity was influenced by citric acid added. On the other hand, it was obtained that cellulose citrate could be develop as an adsorbent.Keyword: cellulose, esterification, citric acid, adsorbent

Study of Solvent Mixture of Aqua destillata–Acetone in the Making of Cellulose Propionate Membrane Budi Kamulyan; Uswatun Hasanah; Febrian Matulesi
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 3, No 2 (2018): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

In this article we will discuss the solubility test of cellulose propionate on various ratio variations of aqua destillata–acetone. Previously cellulose propionate was dispersed into a solvent mixture of aqua destillata-acetone. Variation in volume ratio of aqua destillata–acetone was 4: 1; 3: 1; 2: 1; 1: 2; 1: 3, and 1: 4. The mixture is stirred for 48 h and filtered. The solid was then put into a mold with a sintering technique at a temperature of 100oC for 5-10 minutes. Membrane characterization includes solubility parameters (δmix), density using picno meter and calculation of sample dimensions, and swelling index. The results of the calculation of solubility parameters (δmix) solvent mixture of aqua destillata–acetone (1: 4) close to δ cellulose acetate (12.47). Differences in membrane density using picno meter and calculations in dimensions indicate the presence of cavities or pores in the membrane. Difference in density value of both calculations occurs in the membrane with a mixture of aqua destillata–acetone (1: 3). The highest hydrophobicity properties were obtained in the ratio of solvents of destillata–acetone (1: 4) with the smallest swelling index (48.14%).

Comparison of Fabrication Technique and Carrier Oil to Curcumin Nanoemulsion Properties Zubaidah Ningsih; Sepriana Puspita Dewi Syaiful; Maria L.A.D Lestari; Diah Mardiana; Budi Kamulyan
The Journal of Pure and Applied Chemistry Research Vol 12, No 1 (2023): Edition January-April 2023
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2023.012.01.701

Turmeric (Curcuma longa L.) is included in the rhizome plant containing curcumin which has various therapeutic properties. However, curcumin has poor bioavailability. The manufacture of nanoemulsion is expected to increase curcumin bioavailability. This study aims to compare 3 methods (wet-ball milling, ultrasonication and microfluidic) and 3 carrier oils (soybean, virgin coconut, and olive oil) in the production of curcumin nanoemulsion. Wet-ball milling reduces particle size through grinding process using milling beads in liquid medium. Microfluidic decreases the particle size via collision of emulsion components in microchannel while ultrasound utilizes sound-wave energy to break down the particle size. Parameters compared were particle size, polydispersity index and entrapment efficiency. Particle size and polydispersity index were observed using Particle Size Analyzer with Dynamic Light Scattering technique while entrapment efficiency was measured based on the curcumin absorbance in UV-Visible spectrophotometer at 420 nm. Our study concludes that microfluidic is the most effective and efficient fabrication method which produces the smallest particle size and polydispersity index compared to ultrasonication and microfluidic. The resulting particle sizes using microfluidic are 154, 140 and 132 nm with polydispersity index of 0.224; 0.200and 0.208 insoybean,virgin coconut, and oliveoil respectively. However, entrapment efficiency is best achieved using wet-ball milling method with the average value of 49±10%. Soybean oil appears to be the most curcumin solubilizing oil compared to olive and virgin coconut oil. Thus, it can be concluded that fabrication methods and carrier oils determine curcumin nanoemulsion properties.

Production of Curcumin-Olive Oil-Tween 80 Nanoemulsion Using Green Technology-Wet Ball Milling Method Zubaidah Ningsih; Rahmadhani Mahvirotul Zulkarnain; Budi Kamulyan
Indonesian Journal of Environment and Sustainable Development Vol. 13 No. 2 (2022): Jurnal Pembangunan dan Alam Lestari
Publisher : Postgraduate School Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpal.2022.013.02.02

Turmeric (Curcuma longa L) is one of the medicinal plants as a high sustainable source of curcumin which has various theurapeutic effects. Modification of curcumin in the form of nanoemulsion has been widely developed to increase it’s absorption in the body. A green technology method, wet ball milling, is one of the alternative methods in producing nanoemulsion. Our research highlights the application of wet ball milling in the production of curcumin-olive oil-Tween 80 nanoemulsion. This study aims to determine the effect of different concentrations of Tween 80 (5%, 8% and 10%) with milling time variation of 1, 4, 8 and 24 hours to the characteristics of nanoemulsion. Parameters measured are predicted particle size, encapsulation efficiency and system stability. Our results show that the optimum milling time of 5%, 8% and 10% Tween 80 are 4, 1 and 8 hours with average predicted particle size of 88.9, 94.27 and 180.73 nm and encapsulation efficiency of 4.96%, 12.63% and 71.93%, respectively. Apparently, curcumin-olive oil-Tween 80 nanoemulsion system is less stable in storage for 30 days, however, storage at 4°C can maintain system stability better than at room temperature. Our research is succesfully produced curcumin-olive oil-Tween 80 nanoemulsion by applying wet ball milling method. Keywords: curcumin nanoemulsion, wet-ball milling, sustainable medicinal plants, green technology, Tween 80

Co-Authors Ani Mulya Suryani Bambang Ismuyanto Bambang Poerwadi Diah Mardiana Diah Mardiana Ellya Indahyanti Febrian Matulesi Maria L.A.D Lestari Nur Lailatul Rahma Rahmadhani Mahvirotul Zulkarnain Rensani Taloin Safitri, Anna Sasangka Prasetyawan Sepriana Puspita Dewi Syaiful Siannita Chandra Ulfa Andayani Uswatun Hasanah Zubaidah Ningsih Zubaidah Ningsih

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