Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal Makara Journal of Science Indonesian Journal of Agricultural, Resource and Environmental Economics Journal of Social Work and Science Education
Anggraini, Titin
Unknown Affiliation
Religion Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Education Environmental Science Languange, Linguistic, Communication & Media Social Sciences

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
Catalytic Cracking of Methyl Ester from Used Cooking Oil with Ni-Ion-Exchanged ZSM-5 Catalyst Alfernando, Oki; Sarip, Rozie; Anggraini, Titin; Nazarudin, Nazarudin
Makara Journal of Science Vol. 23, No. 4
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Fossil crude reserves continue to decline, eventually leading to a reduced availability of fuel oil in Indonesia. Thus, the use of alternative plant-derived renewable energy sources, such as biodiesel should be considered. However, biodiesel as a fuel alternative has many drawbacks. In this study, biodiesel was cracked using a Ni-ZSM-5 catalyst to improve its quality. This work aimed to synthesize and characterize the Ni-ZSM-5 catalyst obtained from ion-exchange and catalytically crack methyl esters from used cooking oil. Three Ni-metal concentrations (1%, 2%, and 3%) were used for the ion-exchange of ZSM-5. Ni catalysts were then utilized for catalytic cracking at three temperatures (450 ºC, 500 ºC, and 550 ºC). X-ray diffraction and scanning electron microscopy (SEM) analysis showed that the catalyst was in an aggregate form. SEM-energy-dispersive X-ray spectroscopy analysis indicated that Ni was successfully adsorbed by the catalyst. The gravimetry of the catalytically cracked product revealed that the highest oil fraction was obtained using 1% Ni catalyst at 450 ºC. The largest chain obtained with this catalyst was diesel oil (C13-C19) with total 92.96% of covered peak area in the chromatogram/component quantity from gas chromatography.
The Influence of Principal’s Leadership and Quality of Educational Services on Students Parents’ Satisfaction Anggraini, Titin; Putra, Alhadi Yan; Fahmi, Muhammad
Journal of Social Work and Science Education Vol. 5 No. 3 (2024): Journal of Social Work and Science Education
Publisher : Yayasan Sembilan Pemuda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52690/jswse.v5i3.901

Abstract

This study aims to determine the influence of the principal’s leadership and the quality of educational services on the satisfaction of parents and students at TK IT Abatatsa Lahat Selatan. This type of research is quantitative research with a research design using an ex post facto research design. The sample in this study was 99 parents of TK IT Abatatsa Lahat Selatan students. Data collection techniques using questionnaires. Data analysis techniques use quantitative descriptive analysis techniques and multiple regression. The results of this research state that 1) there is an influence that the principal’s leadership has on the satisfaction of parents of TK IT Abatatsa Lahat Selatan students; 2) there is a significant influence on the quality of educational services on the satisfaction of parents of TK IT Abatatsa Lahat Selatan students; 3) there is a significant joint influence of the principal’s leadership and the quality of educational services on the satisfaction of parents of TK IT Abatatsa Lahat Selatan students.
Daya Saing Ikan Kerapu Bebek (Cromileptes altevelis) di Desa Painan Selatan, Kabupaten Pesisir Selatan: The Competitiveness of Humpback Grouper (Cromileptes altivelis) In South Painan Village, Pesisir Selatan Regency Anggraini, Titin; Hastuti, Hastuti
Indonesian Journal of Agricultural Resource and Environmental Economics Vol. 1 No. 2 (2022): December 2022
Publisher : IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/ijaree.v1i2.42479

Abstract

Desa Painan Selatan merupakan sentra produksi ikan kerapu bebek hasil budi daya di Kabupaten Pesisir Selatan, Provinsi Sumatera Barat. Ikan kerapu bebek yang dihasilkan telah memasuki pasar ekspor beberapa negara di dunia, namun biaya produksi yang tinggi, harga output dan input yang tidak stabil dan luas keramba jaring apung yang relatif kecil menjadi kendala bagi produsen ikan kerapu bebek di Desa Painan Selatan untuk mengembangkan usahanya. Kondisi ini berpengaruh terhadap daya saing ikan kerapu bebek di Desa Painan Selatan. Berdasarkan permasalahan tersebut, maka tujuan dari penelitian ini yaitu (1) menganalisis keunggulan kompetitif dan komparatif ikan kerapu bebek di Desa Painan Selatan, (2) menganalisis pengaruh perubahan harga output dan input terhadap keunggulan kompetitif dan komparatif ikan kerapu bebek di Desa Painan Selatan. Metode analisis yang digunakan pada penelitian ini yaitu Policy Analysis Matrix (PAM) dan analisis sensitivitas pada PAM. Hasil analisis PAM menunjukkan bahwa ikan kerapu bebek di Desa Painan Selatan memiliki keunggulan kompetitif dan komparatif, karena nilai PCR dan DRCR yang dihasilkan lebih kecil dari satu. Adapun hasil analisis sensitivitas menunjukkan bahwa perubahan harga output dan input menurunkan keunggulan kompetitif ikan kerapu bebek di Desa Painan Selatan, namun masih berdaya saing karena nilai yang dihasilkan masih lebih kecil dari satu South Painan Village is a humpback grouper aquaculture production center in Pesisir Selatan Regency, West Sumatra Province. The humpback grouper produced has entered the export market. However, the high costs of humpback grouper of aquaculture, unstable output and input prices, and the relatively small area of floating net cages are considered to be obstacles for humpback grouper farmers to develop their business. This condition affects the competitiveness of humpback grouper in South Painan Village. The objectives of this research are to:(1) analyze the competitive and comparative advantages of humpback grouper in South Painan Village; (2) analyze the effect of changes in output and input prices on the competitive and comparative advantage of humpback grouper in South Painan Village. The analytical methods used in this research are Policy Analysis Matrix (PAM) and sensitivity analysis on PAM. The results of the PAM analysis showed that the humpback grouper farming business in South Painan Village has competitive and comparative advantages, because the PCR and DRCR values are smaller than one. The sensitivity analysis results showed that changes in output and input prices reduce the competitive advantage of humpback grouper but still have competitiveness because the PCR value is smaller than one.
Co-Authors Hastuti Hastuti Munadi Munadi Oki Alfernando Putra, Alhadi Yan Sarip, Rozie Sugeng Santoso