Showing papers in "Procedia Chemistry in 2015"

TL;DR: In this article, the effect of molar ratios 2:1 and 3:1 on the structure and material properties of synthesized hydrotalcite was investigated by using X-ray diffractogram and FTIR spectra.

TL;DR: In this article, the authors have analyzed both physically and chemically the coconut shell powder (CSP) to have a better understanding of the material its properties, and the results showed that CSP was seen to pyrolyse best between 220°C - 380°C with a residue of 16.2% left at the end of the pyrolysization.

TL;DR: In this article, the chlorophyll content of green leafy vegetables found commercially and carry out a comparative investigation between in vivo and in vitro data was evaluated by using SPAD values of a handheld SPAD-502 and % N of an Agriexpert CCN-6000 nitrogen meter.

TL;DR: In this paper, the synthesis and characterization of Fe-TiO2 composite as a photocatalyst in the photodegradation of methylene blue on visible light irradiation in a closed reactor have been carried out.

TL;DR: In this paper, the filler composition of natural rubber compounds with both carbon black and silica has been studied in terms of filler composition and the rheological behavior and mechanical properties.

TL;DR: In this paper, a simple and rapid extraction procedure was employed to collect brown-algal photosynthetic pigments, followed by encapsulation using freeze drying with maltodextrin and Tween-80 as the encapsulating agents.

TL;DR: In this article, a study for the making of dissolving pulp of four types of bamboo such as Apus (Gigantochloa apus), Petung (Dendrocalamus asper), Mayan (Giantchloa robusta), and Sembilang (Sembilang giganteus) is presented.

TL;DR: In this paper, the catalytic performance of four types of Co/ZSM-5 zeolites in partial oxidation of methane were compared to observe the effect of pore size and cobalt species to the reaction.

TL;DR: In this paper, accelerated solvent extraction (ASE) was applied to the quantitative extraction of bixin and the effects of cyclohexane/acetone ratios on bixins extraction yield were evaluated.

TL;DR: In this paper, the authors evaluated the stability of the betacyanin extract from dragon fruit peels by measuring the effects of storage time and pH by spectrophotometer at wavelength 538nm.

TL;DR: In this article, the performance of MFCs with and without the methylene blue (MB) as an electron mediator utilizing Saccharomyces cerevisiae as biocatalysts and glucose as substrate to generate electricity.

TL;DR: In this article, the authors used Guava (Psidium guajava L.) leaf extract as a functional ingredient for immunostimulant, and used water and ethanol as solvents to obtain optimum active compounds of the extracts.

TL;DR: In this paper, aqueous ethanol 70% (v/v) extract of C. asiatica was used to identify active compounds as α-glucosidase inhibitor and antioxidant.

TL;DR: In this article, the sulfuric acid hydrolysis of bacterial cellulose (BC) produced by Gluconacetobacter xylinus using pineapple peel waste juice as culture medium was investigated.

TL;DR: A study of organic loading rate and effect of NaOH concentration on the pretreatment stage of corn husk (CH) was conducted by Face-Centered Central Composite Design (CCF) to improve the biogas production as discussed by the authors.

TL;DR: In this paper, the authors investigated the OSCS removal by mean of bioremediation technique and found that petrofilic consortia and biosurfactants addition increased the removal efficiency up to 46% and 85%, respectively.

TL;DR: In this paper, the authors investigated the optimization of saccharification and fermentation process for OPF and showed that the highest ethanol concentration can be obtained in SSF process with 30 FPU/g substrate of enzyme concentration.

TL;DR: In this article, a combination of electro-assisted system and hydroponic phytoremediation was used for rapid removal of Pb2+ and Cu2+ from contaminated water which has been demonstrated in a laboratory-scale experiment.

TL;DR: In this paper, the identification of green tea pigments ( Camellia sinensis (L.) Kuntze) were conducted by using thin-layer chromatography and high-performance liquid chromatography (HPLC) equipped with photodiode array detector.

TL;DR: In this paper, the influence of alkaline pretreatment to chemical composition, cellulose crystallinity index, and morphology of oil palm EFB and OPF was reported, and the results showed that increasing alkaline concentration causes decreasing of lignin content from 25.83% to 13.61% for oil palm empty fruit bunch (EFB) and from 30.92% to 19.23% for OPF at 10% of NaOH solution.

TL;DR: In this paper, the authors explored the potential of moderate halophilic bacteria Bacillus licheniformis BK AG21 isolated from Bledug Kuwu, Purwodadi Central Java, in producing levan.

TL;DR: In this paper, the photocatalytic activity of the synthesized catalyst was evaluated by applying the catalyst for photocatalysis decomposition of chromium (VI) using atomic absorption spectroscopy (AAS) and X-ray diffraction (XRD).

TL;DR: The objectives of this research are to formulate best media for Pleurotus ostreatus cultivation, to give alternative for palm oil Industries to use EFB for mushroom cultivation, and to support Indonesian government policy to increase food security.

TL;DR: In this paper, overripe and fresh tempeh powders were tested and found to have higher levels of sourness, umami, bitterness, saltiness, and pungent aroma compared to fresh temppeh.

TL;DR: The addition of Ca2+ ion has turned lipase BK-AB18 into a multistable enzyme, which is potential to be further developed for various industrial applications, particularly those industries operate their process in harsh conditions, such as high temperature, high salinity and involving organic solvent or surfactant.

TL;DR: In this article, the cytotoxic effect of kaffir lime leaf extract on cervical cancer and neuroblastoma cell lines was examined using 3-4-5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay.

TL;DR: In this paper, the content of As, Cd, Cr, Cu, Ni, Pb, Zn, and Hg in water of stream near an amalgamation tailing pond in Talawaan-Tatelu mining was determined using ICP/MS, except Hg using CVAFS method.

TL;DR: In this article, the results showed characteristic absorption bands of inulin structure, such as OH stretch (3350 cm-1) and carbonyl (1645 cm- 1), and four characteristic regions can be distinguished.

TL;DR: In this paper, the authors obtained a comprehensive data of the ciplukan as functional ingredients, whose efficacy acts as immunomodulator and antioxidant, and performed using ethanol and water as solvent.

TL;DR: In this article, a palm oil-based alkyd resin was prepared with and without the presence of CuO nanoparticles and the mechanical properties, such as tensile and flexural strength of the cured blends were measured.