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Journal of Science Innovare
Published by Universitas Pakuan
ISSN : 26153769     EISSN : 26153750     DOI : -
Core Subject : Health, Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Engineering Medicine & Pharmacology
Journal of Science Innovare is an academic journal that publishes scientific papers in the field of Science Innovare. This journal is published two times a year (March and September) by Lembaga Penelitian dan Pengabdian Pada Masyarakat, Universitas Pakuan Bogor since 2017. The scope of journal are: all science and technology research areas including Physics, Chemistry, Biology, Mathematics, Statistics, Biodiversity, Food Science Technology, Engineering Science and Educational Science.
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Articles 7 Documents
 1 
Search results for , issue "Vol 1, No 2 (2018): Journal of Science Innovare, Volume 01 Number 02 2018" : 7 Documents clear
LITAO3 CHARACTERIZATION OF RUBIDIUM ON TEMPERATURE VARIATIONS Agus Ismangil; Teguh Puja Negara
Journal of Science Innovare Vol 1, No 2 (2018): Journal of Science Innovare, Volume 01 Number 02 2018
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/jsi.v1i02.1005

Abstract

One of the studies that recently attracted the attention of physicists is research on ferroelectric material because this material is very promising for the development of new generation devices in connection with the unique properties it has. Ferroelectric materials, especially those based on a mixture of lithium tantalite (LiTaO3), are expected to be applied to the infrared sensor. Lithium tantalate (LiTaO3) is a ferroelectric material that is unique in terms of pyroelectric and piezoelectric properties that are integrated with good mechanical and chemical stability. Therefore LiTaO3 is often used for several applications such as electro-optical modulators and pyroelectric detectors. LiTaO3 is a non-hygroscopic crystal, colorless, soluble in water, has a high transmission rate and does not easily damage its optical properties. LiTaO3 is a material that has a high dielectric constant and a high load storage capacity. This research has succeeded in determining the band gap energy of the LiTaO3 film in the rubidium chamber obtained in the range of values 2.02-2.98 eV as shown in figure 4. The LiTaO3 film after the annealing process at a temperature of 650 oC, has the highest band gap energy of 2.98 eV. Large energy is needed on the electrons to be excited from the valence band to the conduction band. Whereas in the LiTaO3 film after an annealing process of 800 oC, the band gap energy obtained is 2.02 eV. This makes it easier for electrons to be excited from the valence band to the conduction band because the energy needed is not too large.
EXPLORATION AND IDENTIFICATION OF ARBUSCULAR MYCORRHIZAL FUNGI FROM THE RHIZOSPHERE OF CHILI PLANTS (Capsicum Annuum L) IN BOGOR Munarti .; Annisa Wulan; Agus Utami
Journal of Science Innovare Vol 1, No 2 (2018): Journal of Science Innovare, Volume 01 Number 02 2018
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/jsi.v1i02.1001

Abstract

Mycorrhiza is ana structural and functional association between specific fungus and the roots of symbiotic relationship between mutualisme functions with a high degree of plant roots. Benefits of mycorrhiza for plant growth and development as its host is to increase the absorption of nutrient elements of soils, as biological barrier against infection of root pathogen, enhancing the resilience of crops to drought and increasing hormone boosters grows. This research aims to identify a arbuskular mycorrhiza fungi isolated from chilli plants rhizosphere in the village of Cilubang Mekar, Gunung Picung, Cikoneng, dan Kampung Baru. The results of this research show that the exploration and characterization of spores that develop on the roots of chilli in the village indicates a growing spores there is the genus Acaulopora, Gigaspora, andGlomus.type of Spore that successfully identified a species of Glomus sp 1, Glomus sp 2, Glomus sp 3.
THE TEST OF ANTIOXIDANT ACTIVITIES WITH COMPARISON OF EXTRACTION METHODS FROM ROBUSTA COFFEE SEEDS (Coffea canephora) Novi Fajar Utami; Nhadira Nhestricia
Journal of Science Innovare Vol 1, No 2 (2018): Journal of Science Innovare, Volume 01 Number 02 2018
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/jsi.v1i02.1002

Abstract

The content of robusta coffee include alkaloids, flavonoids, saponin, tannins, caffeine, and phenol. Differences in the method of extraction of a plant can cause differences in the number of chemical compounds. The purpose of this study was to determine the phytochemical characteristics and antioxidant activity in robusta coffee beans extracted by maceration and sonication method. Antioxidant activity was performed by the method of DPPH (2,2-diphenyl-1-picrylhydrazyl) by spectrophotometry. The results showed that phytochemical characteristics of robusta coffee extract of maceration and sonication contain the same chemical compounds, namely alkaloids, flavonoids, tannins, and saponins. The antioxidant activity of robusta coffee seed extract of sonication result has IC50 of 54,14 ppm which is better than the extract of robusta coffee beans from maceration.
CONDITIONS OF HILLING HABITAT OF CHELONIA MYDAS (GREEN TURTLE) IN PANGUMBAHAN BEACH UJUNG GENTENG, SUKABUMI SELATAN Meilisha Putri Pertiwi; Suci Siti Lathifah
Journal of Science Innovare Vol 1, No 2 (2018): Journal of Science Innovare, Volume 01 Number 02 2018
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/jsi.v1i02.1003

Abstract

Research on the condition of the nesting habitat of Chelonia mydas (green turtle) in Pangumbahan Beach, Ujung Genteng, South Sukabumi has been carried out. Data retrieval is done 6 times for 2 days, 27-28 November 2017 at 3 observation stations. The abiotic parameters measured include surface temperature and depth of 50 cm, surface humidity and depth of 50 cm, beach width, beach slope, and the size of sand grains. While the biotic parameters measured were density, relative density, the frequency of attendance, and distribution patterns of Pandanus tectorius (sea pandanus) vegetation. Based on the results of data processing, the biophysical conditions in Pangumbahan Beach are still suitable for the Chelonia mydas nesting habitat. It also got clear evidence of the many Chelonia mydas landings during the data collection.
THE TABLET FORMULATIONS EFERVESEN EXTRACT OF CINNAMON BARK WITH VARIATIONS IN THE TYPE OF SWEETENER Septia Andini; Erni Rustiani; Dwi Indriati
Journal of Science Innovare Vol 1, No 2 (2018): Journal of Science Innovare, Volume 01 Number 02 2018
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/jsi.v1i02.999

Abstract

Cinnamon Bark contains flavonoids, tannins, alkaloids, and phenols. Phenolic compounds contained in cinnamon is a sinamat acid is effective as anti diabetic. This research aims to determine the formula preparations tablets efervesen extract of cinnamon bark with a certain type of sweetener that favored the panelists and the levels of sinamat acid in efervesen tablets and extracts. The formula is made with different types of sweeteners such as aspartame stevia 1.5%, 3.5% and 1% sukralosa. The results of the analysis showed no difference in sweeteners influence against the parameters of color and scent but the effect on the parameters of taste every formula. Formula tablets efervesen extract of cinnamon bark that is favored by panelists based on based on the parameters of taste is formula 1 with the sweetener aspartame concentration of 1.5% and a formula 3 with sweetener sukralosa concentration 1% preferred formula panelists. The results of the analysis of the levels of sinamat acid in extract of cinnamon bark obtained the level of 471, 13 mg/g as for Formula 1 tablet efervesen acquired the levels of 369.76 mg/gram
PALM KERNEL SHELL AS AN ALTERNATIVE AGGREGATE ON HIGH PERFORMANCE CONCRETE CONCRETE Heny Purwanti; Titik Penta Artiningsih
Journal of Science Innovare Vol 1, No 2 (2018): Journal of Science Innovare, Volume 01 Number 02 2018
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/jsi.v1i02.1004

Abstract

Coarse aggregates commonly used in concrete are coarse natural aggregates, which are broken stones or gravel. Continuous rock exploration can cause environmental damage or even more severe ecosystem damage. Therefore it is necessary to substitute an alternative aggregate. Indonesia has the second largest oil palm plantation (Elaeis guineensis Jacq) in the world after Malaysia. Plantations are renewable resources, so palm oil is also potential to be used as an alternative to diesel fuel. Palm kernel shells are palm oil industry wastes which are generally underutilized. Palm kernel shells can be used as an alternative to coarse aggregate, because oil palm shells have the advantage of being hard, tough and good durability due to the high content of lignin and silica dioxide (SiO2), such as hard wood, but low cellulose content so it is not easy rot. The strength of the palm oil shell is quite good. In addition, the aggregate gradation also fulfills the requirements without a breakdown process, which has a thickness of 2-4 mm and a maximum width of 15 mm. The volume of oil palm shells is + 600 kg/m3, so it will produce significant light weight concrete. The concrete studied was concrete with a coarse aggregate of tenera palm kernel shells, with fine aggregates of natural sand, and a Portland Composite Cement (PCC), but the PCC content was reduced and replaced by FA which varied from 0%, 5%, 10 %, 15%, 20 and 25%. Concrete also added superplasticizer (SP). SP is used to reduce water use, because the shell absorbs water. SP levels also vary, namely 0%, 1%, and 1.2%. The weight of the volume of concrete with various levels of fly ash and SP is 1700-1800 kg/m3, so it can be classified as lightweight concrete. Increased FA levels will increase compressive strength, but only up to 10%, after which the strength decreases. Compressive strength of specimens with SP 0% and FA 10% is 17.92 MPa, for SP levels of 1% and FA 10% is 22.15 MPa, while for SP levels of 1.2% and FA 10% is 19.35 MPa . So that it can be concluded that the palm shell as bio-material (renewable resources) can be used as a substitute for natural coarse aggregates. The optimum fly ash level is 10%, and to reduce water use SP 1%. The use of oil palm shells as a substitute for gravel means reducing the waste of the palm oil industry, while reducing rock exposures. In addition, in Indonesia there are many areas where there are no rock sources while oil palm plantations are quite extensive.
PHYTOCHEMICAL CHARACTERIZATION AND TANNIN STABILITY TEST FROM KLUWEK (Pangium edule Reinw) Siti Warnasih; Uswatun Hasanah
Journal of Science Innovare Vol 1, No 2 (2018): Journal of Science Innovare, Volume 01 Number 02 2018
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/jsi.v1i02.1000

Abstract

One of the herbs that can be used as a source of natural dye is the kluwek which is brown. This study aims to determine the type of secondary metabolite compounds producing color, and to determine the stability of tannin in various conditions such as pH, oxidizing, UV rays, heating temperature, and storage using UV-Vis spectrophotometry method. This research includes preparation of kluwek, extraction with acetone:water (7:3) with maceration method, phytochemical test (tannin, flavonoid, carotenoid, and anthocyanin) and total tannins, and tannin stability test on various pH, oxidizing, UV rays, temperature and duration of heating, and storage using the UV-Vis spectrophotometry method. The results obtained are kluwek extract containing tannin, flavonoid, carotenoid, and anthocyanin compounds, and  total tannins 2.80%. Based on the tannin content, kluwek extract stable at pH 6-7, heating 60-80 oC, and storage up to 9 days at temperature 27 °C, and kluwek extract unstable when contact with 1% H2O2, UV light, and if kept at cold temperature (10 ˚C).

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