<div><p>Coal tar can be used as an alternative raw material for the production of liquid fuels, such as: gasoline and diesel through hydrogenation and cracking process. Hydrogenation and cracking process requires a catalyst which has metal components for hydrogenation reaction and acid components for cracking reaction. In this study, the Co/Zeolite Y and Co-Mo/Zeolite Y catalysts were prepared by impregnation and ion exchange methods. Characterizations of the catalysts were carried out by X-Ray Diffraction (XRD) and gravimetric acidity. The catalysts were tested for coal tar conversion to liquid fuel under various temperatures, amount of catalyst and hydrogen flow rates in a fixed bed flow reaction system. Liquid fuels products were analyzed by gas chromatography (GC). The XRD Spectra indicated that the addition of Co and Mo metals did not affect catalysts structure, however it alters the percentage of crystallinity. The addition of Co metal using impregnation method caused reduction in crystallinity, while the addition of Mo caused improvement of crystallinity. The Co-Mo/Zeolite Y catalyst with highest crystallinity was obtained by loading using ion exchange method. The addition of Co and Mo metals caused increasing acidity. However, the increasing composition of Co and Mo loaded on Zeolite Y catalyst decreased the yield of liquid fuels from coal tar. It can be concluded that the yields of liquid fuels and the composition of gasoline fractions from hydrocracking of coal tar were highly dependent on  acidity of the catalyst. Copyright © 2016 BCREC GROUP. All rights reserved</p><p class="HistoryArticleBCREC"><em>Received: 10^th November 2015; Revised: 16^th January 2016; Accepted: 16^th January 2016</em></p><p><strong>How to Cite</strong>: Anggoro, D.D., Hidayati, N., Buchori, L., Mundriyastutik, Y. (2016). Effect of Co and Mo Loading by Impregnation and Ion Exchange Methods on Morphological Properties of Zeolite Y Catalyst. <em>Bulletin of Chemical Reaction Engineering &amp; Catalysis</em>, 11 (1): 75-83. (doi:10.9767/bcrec.11.1.418.75-83)</p><p><strong>Permalink/DOI</strong>: <a href="http://dx.doi.org/10.9767/bcrec.11.1.418.75-83">http://dx.doi.org/10.9767/bcrec.11.1.418.75-83</a></p><p> </p></div>

This study is intended to find the quality of bottled drinking water (AMDK) and drinking water (AMIU) sold around University of Muhammadiyah Kudus, in terms of organoleptic and microbiological parameters in drinking water according to SNI 01-3554-2006 and PMK No. 492 of  2010. The test is carried out using 10 sample of drinking water. They are 7 sample of AMDK (Ades, Airmu, Aqua, Cleo, Crystalin, Le mineral and Vit) and 3 sample of AMIU (Pasuruhan, Prambatan and Purwosari depots). The research consists of chemical physics which includes testing of TDS, pH, and three heavy metal elements which includes testing for the content of the elements Fe, Mn and Cl2 (chlorine), organoleptic and  mikrobiologis (TPC, presence of E. coli and total coliform).The results of research shows that of physical and chemical measurements, the total dissolved solid (TDS) results 0 for Airmu and Cleo (demineral) and below 500 ppm for 8 samples of mineral water, this is according with the TDS requirements of SNI, > 10 ppm for demineralized and > 500 ppm for mineral water. The results of the pH test or the degree of acidity are in normal pH, which are around 7 out of 9 samples and only one with an alkaline condition is 8.37, namely the sample from the Pasuruhan depot. The test for the presence of heavy metals, Fe, Mn, is in good condition, showing the number zero with the brand brand test kit. Whereas for testing the presence of chlorine content, the results were above the threshold, namely 0.05 ppm from the Pasuruhan depot water sample, 0.02 ppm from the Prambat depot and the Purwosari depot. This is not in accordance with SNI provisions for chlorine content of 0 ppm. The organoleptik of all samples is in normal condition. Whereas, microbiologically, the TPC results before dilution were only Cleo and Ades which were suitable for consumption because they were absent from bacterial contamination. While the TPC results after dilution, testing the difference between E. Coli and Total coliform resulted in 7 samples of bottled drinking water which were safe and feasible as drinking water according to SNI 01-3553-2006 and 3 samples AMIU does not fulfil PMK No. 492/2010, as drinking water requirements.Keywords: AMDK, AMIU, Organoleptic Quality, Microbiology

Kulit manggis (Garcinia mangostana L.) mengandung α-mangostin yang dapat membiosintesis AgNP, dikarakterisasi dengan UV-Vis untuk mengetahui optical properties dan PSA untuk mengetahui distribusi ukuran partikel. Nanoperak diformulasikan dalam bentuk serum AgNP dalam 4 formula dengan variasi konsentrasi AgNP. Sediaan disimpan selama 14 hari untuk mengetahui pengaruh dari waktu penyimpanan. Penelitian ini bertujuan untuk mensintesis AgNP dari larutan AgNO3 dengan menggunakan bioreduktor dekokta kulit manggis serta mengetahui pengaruh konsentrasi AgNP terhadap mutu fisik serum meliputi organoleptis, pH, viskositas, dan homogenitas. Penelitian ini menggunakan desain true experimental yang menghasilkan data yang disajikan secara deskriptif dan analitik. Analisis kuantitatif dengan metode Shapiro-Wilk Test, uji ANOVA dua arah (α = 0,05), dan analisis Post Hoc dengan uji Tukey. Hasil penelitian menunjukkan terdapat hubungan antara perbedaan variasi konsentrasi zat aktif AgNP, terhadap mutu fisik serum. Selain itu, pengaruh dari waktu penyimpanan selama 14 hari tidak mempengaruhi stabilitas sarum. Dekokta kulit kulit mampu membiosintesis AgNP dengan karakteristik  439-441 nm dan distribusi ukuran 110,1 ± 4,33 nm. Variasi konsentrasi AgNP dalam serum mampu mempengaruhi mutu fisik sediaan baik organoleptis, pH, dan viskositas, serta tidak mempengaruhi homogenitas. Keempat formula dengan zat aktif AgNP hasil biosintesis memenuhi kriteria serum yang baik dengan waku penyimpanan 14 hari.

Masyarakat biasanya menggunakan daun Sangketan untuk mengobati sawanan dengan mengusapkan daun sangketan, bawang, dlingo, dan bengkle yang sudah dihaluskan kemudian dioleskan pada ubun-ubun, kuping, leher, tangan, dan kaki. Daun sangketan mengandung alkaloid, flavonoid, saponin, steroid, dan terpenoid. Flavonoid telah terbukti mencegah atau memperlambat perkembangan beberapa kanker. Sebagian besar bertindak sebagai agen anti-oksidan dan anti-inflamasi. Tujuan dari penelitian ini adalah untuk mengetahui profil flavonoid dari ekstrak etanol daun sangketan (Achyrantes Aspera) secara kualitatif. Menggunakan metode eksperimen dengan pendekatan one shot case study. Serbuk simplisia di maserasi dengan etanol 96% selama 8 hari disertai pengadukan, filtrat diuapkan hingga menjadi ekstrak kental. Pengujian kadar flavonoid total ekstrak dilakukan dengan spektrofotometer, menggunakan larutan baku kuersetin. Hasil analisis dengan menggunakan spektrofotometri UV-Vis, konsentrasi ekstrak Sangketan 100 ppm lebih mendekati nilai absorbansi baku quersetin pada panjang gelombang 419,8 nm, dengan kadar flavonoid total 47,23%. Berdasarkan analisis dengan spektrofotometri UV-Vis pada panjang gelombang 419,8 nm, ekstrak etanol daun sangketan mengandung flavonoid total dengan kadar 47,23%. tanin.

Abstrak Banyaknya jenis krim pelembab dipasaran membutuhkan pengetahuan dan sikap dalam memilih karena keamanan dari krim pelembab wajah sangat penting terutama bagi remaja putri. Kelompok remaja putri adalah populasi yang paling rentan terhadap penggunaan kosmetik tanpa indikasi. Hal ini dikarenakan kebutuhan mereka untuk tampil menarik. Tujuan dari penelitian ini adalah untuk mengetahui tingkat pengetahuan dan pemilihan krim pelembab wajah terhadap Kesehatan kulit remaja putri. Metode yang digunakan dalam penelitian adalah observasi analitik dengan desain cross sectional. Hasil dari penelitian di peroleh adanya hubungan antara pengetahuan dengan pemilihan krim pelembab dengan kesehatan kulit p value (0,024).