KINETIKA REAKSI HIDROLISIS PATI DARI BIJI DURIAN (Durio Zibethinus Murr) DAN BIJI NANGKA (Artocarpus Heterophyllus Lamk) MENGGUNAKAN KATALISATOR ASAM ASETAT (CH3COOH ).

Tujuan penelitian ini adalah mempelajari laju konversi hidrolisis pati dari biji durian (Durio zibethinus murr) dan biji nangka (Artocarpus heterophyllus Lamk) menjadi glukosa. Pada hidrolisis menggunakan analisis kuantitatif dengan metode luff schoorl dengan bantuan katalisator asam asetat (CH3COOH) pada berbagai variasi suhu yaitu 70,80,90oC dan waktu 1,2,3,4,5, dan 6 jam. Hasil penelitan menunjukkan bahwa orde reaksi hidrolisis pati menjadi glukosa adalah orde I, hal ini didukung dengan analisis k yang relatf konstan pada suhu 70,80,90oC dan waktu 6 jam pada pati biji durian yaitu krata-rata = 0,0117 jam-1, dari data ini kadar pati yang didapatkan pada biji durian adalah 68,61% dengan konversi 3,48% glukosa dan pada biji nangka krata-rata = 0,0100 jam-1 dengan kadar pati 79,01% dengan konversi 3,36% glukosa. Dengan demikian dapat disimpulkan bahwa laju konversi hidrolisis pati menjadi glukosa adalah r = k[pati]1. Kata kunci: Glukosa, pati biji durian, pati biji nangka, laju konversi

Ultrasonic-Assisted Flavonoid Extraction from Ant Nest

The extraction of active substances from ant nests can be affected by various extraction methods, whether conventional or sonication. Sample extraction was carried out by maceration and ultrasonic methods with the use of solvents to yield flavonoid compounds. The solvents used were aquadest, 70% ethanol and n-hexane, with a material-to-solvent ratio of 1:50 (w/v). The highest flavonoid content of 14% was obtained by ultrasonic-assisted extraction method,  with aquadest as the solvent and at operating conditions of 24 minutes at a temperature of 40oC. Due to their high aquadest solubility and the presence of one or more sulphate ions that are bound to the hydroxyl phenol or sugar, the flavonoids produced are classified as flavonoid sulphate

ANALISIS MOTIVASI KERJA PERAWAT DIRUMAH SAKIT EKA HOSPITAL PEKANBARU

The purpose of this research is to know about nurse work motivation and to know policy of hospital in improving work motivation of nurse. This research was conducted at Hospital Eka Hospital Pekanbaru. Types and data sources used are primary and secondary data, data collection techniques are obtained through questioners, interviews and observation. The number of samples taken from population nurse 270 people as many as 54 people. The sampling technique used by the researcher is using simple random sampling. Data analysis used is descriptive analysis. The results of the whole study showed that the opinion of the respondents about the motivation of nurses at Hospital Eka Hospital Pekanbaru is in the category strongly agree

Density of caalcareous macroalgae Halimeda sp. and Padina sp. around the water of Kodingareng Lompo Island, Spermonde Archipelago, Indonesia

Based on the results obtained from this study, it can be concluded that: (1). Halimeda sp density based on stations, there is a noticeable difference between station 1 and station 3, (2)Halimeda sp density based on the research time, namely there is a noticeable difference between the study time in July and October, (3) Padina sp density based on stations, there is a noticeable difference between station 1 and station 2, and (4). The density of Padina sp is based on the time of the study, that is, there is a noticeable difference between the time of the study in July and October

Identifikasi Pemahaman Konsep Siswa pada Materi Termokimia Menggunakan Tes Diagnostik Three-Tier Multiple Choice

Penelitian ini merupakan penelitian deskriptif kualitatif, yang bertujuan untuk mengetahui pemahaman konsep siswa pada termokimia di kelas XI SMA Negeri 1 Gorontalo. Instrumen yang digunakan adalah Tes Diagnosis Three-tier multiple choice. Subjek penelitian yang digunakan adalah kelas XI IPA SMA Negeri 1 Gorontalo dengan jumlah sampel sebanyak 42 siswa. Data penelitian di peroleh dari jawaban siswa pada soal Three-tier multiple choice. Data tersebut diolah berdasarkan pola jawaban siswa yang kemudian di kelompokan ke dalam kategori paham konsep, miskonsepsi dan tidak paham konsep. Hasil penelitian menunjukkan bahwa siswa yang paham konsep sebesar 46,19%, miskonsepsi sebesar 43,97% dan tidak paham konsep sebesar 9,84

Isomer Spectroscopy of Neutron-rich 165,167Tb

Open Access JournalWe present information on the excited states in the prolate-deformed, neutron-rich nuclei 165;167Tb100;102. The nuclei of interest were synthesized following in-flight fission of a 345 MeV per nucleon 238U primary beam on a 2 mm 9Be target at the Radioactive Ion-Beam Factory (RIBF), RIKEN, Japan. The exotic nuclei were separated and identified event-by-event using the BigRIPS separator, with discrete energy gamma-ray decays from isomeric states with half-lives in the _s regime measured using the EURICA gamma-ray spectrometer. Metastable-state decays are identified in 165Tb and 167Tb and interpreted as arising from hindered E1 decay from the 7/2-[523] single quasi-proton Nilsson configuration to rotational states built on the 3/2-[411] single quasi-proton ground state. These data correspond to the first spectroscopic information in the heaviest, odd-A terbium isotopes reported to date and provide information on proton Nilsson configurations which reside close to the Fermi surface as the 170Dy doubly-midshell nucleus is approached.postprin

Budget impact analysis of medicines : updated systematic review and implications

This evaluation determines whether published studies to date meet the key characteristics identified for budget impact analyses (BIA) for medicines, accomplished through a systematic review and assessment against identified key characteristics. Studies from 2001 to 2015 on "budget impact analysis" with "drug" interventions were assessed, selected based on their titles/abstracts and full texts, with their characteristics checked according to key criteria. Out of 1984 studies, 92 were identified. Of these, 95% were published in Europe and the USA. 2012 saw the largest number of publications (16%) with a decline thereafter. 48% met up to 6 or 7 out of the 9 key characteristics. Only 22% stated no conflict of interest. The results indicate low adherence to the key characteristics that should be considered for BIAs and strong conflict of interest. This is an issue since BIAs can be of fundamental importance in managing the entry of new medicines including reimbursement decisions

Extraction and characterization of pectin from the fruit peel of Benincasa hispida (Thunb.) cogn

Pectin is a polysaccharide and a major component of most plant cell walls and serves as an adsorbent, emulsifying agent, gelling agent, stabilizer, and gelling agent. Pectic can be obtained from the fruit peel of Bligo (Benincasa hispida (Thunb.) Cogn). This study aims to determine the presence of pectin in the peel of Bligo fruit, which can be used as a gelling agent, and to obtain the best solvent concentration and time for the extraction and characterization of pectin from the peel of Bligo fruit by using a completely randomized design (CRD) using 4 variations. Concentration of citric acid solvent (5%,7%,9% and 11%) with extraction time consisting of 4 levels (30, 60, 90 and 120 minutes). The characteristics of the pectin produced were determined based on its water and ash content, equivalent weight, methoxyl content, galacturonic acid content, and degree of esterification. The results showed that the highest yield was obtained from 7% citric acid concentration with an extraction time of 60 minutes, with the value of 9.8%. The resulted pectin had a water content of 10.4%; ash content of 8.75%; an equivalent weight of 779.243 mg; methoxyl content of 2.515%; galacturonic acid content of 114.685%; and esterification degree of 12.445%. The characterization of functional groups using FTIR showed groups -OH, -CH3, -C=O, -C-H, and -R-OR with wavelength respectively of 2958.93 cm-1; 1396.52 cm-1; 1724.36 cm-1; 1416.78 cm-1; and 1220.99 cm-1