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All Journal Jurnal Matematika Sains dan Teknologi Educational Studies: Conference Series Botani: Publikasi Ilmu Tanaman dan Agribisnis
Rahmatiyah Rahmatiyah
Universitas Terbuka
Agriculture, Biological Sciences & Forestry Arts Humanities Education Mathematics Other

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PENGGUNAAN BUTIL HIDROKSI TOLUEN UNTUK MENGHAMBAT KETENGIKAN MINYAK KELAPA HASIL OLAHAN PETANI Rahmatiyah Rahmatiyah
Jurnal Matematika Sains dan Teknologi Vol. 13 No. 2 (2012)
Publisher : LPPM Universitas Terbuka

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Abstract

Traditionally refined coconut oil processed by farmers is less durable than the factory processed. Addition of Butyl Hydroxy Toluene (BHT) in the coconut oil was known to decrease its rancidity due to prolong storage and to increase its durability. With a variety of treatments it was expected that coconut oil processed by farmers can be stored up to 3 months. The purpose of this study is to recommend the use of BHT in precise concentration by farmers to inhibit rancidity of the refined coconut oil. The study was consisted of three treatments, namely control, addition of BHT 0.01%, and 0.02%. Analysis of the three treatments showed significant difference in the degree of rancidity for the addition of 0.01% and 0.02% BHT compared to the control. Therefore, addition of 0.01% BHT treatment can be recommended to farmers to extend the storage life of the refined coconut oil. Minyak kelapa olahan petani lebih pendek masa simpannya dibandingkan minyak hasil olahan pabrik. Penambahan Butil Hidroksi Toluen (BHT) pada minyak kelapa diketahui dapat mengurangi ketengikan dan memperpanjang masa simpan minyak. Dengan berbagai perlakuan diharapkan minyak kelapa hasil olahan petani dapat disimpan hingga 3 bulan. Tujuan dari penelitian ini adalah untuk merekomendasikan penggunaan BHT dengan konsentrasi yang tepat bagi para petani untuk menghambat ketengikan minyak kelapa. Penelitian ini terdiri dari tiga perlakuan yaitu kontrol, penambahan BHT 0,01%, dan 0,02%. Hasil analisis ketiga perlakuan menunjukkan beda nyata pada derajat ketengikan untuk penambahan BHT 0,01% dan 0,02% dibandingkan dengan kontrol. Dengan demikian, perlakuan penambahan BHT 0,01% dapat direkomendasikan kepada petani untuk memperpanjang masa simpan minyak.
ACTIVITY OF SOLAR SCREEN FROM AVOCODO SKIN EXTRACT (PERSEA AMERICANA MILL.) IN VITRO Muh. Amir Masruhim; Nurul Fitriani; Rahmatiyah Rahmatiyah
Educational Studies: Conference Series Vol 2 No 2 (2022)
Publisher : Faculty of Teacher Training and Education, Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/escs.v2i2.1650

Abstract

Sunscreen is a preparation that is used on the surface of the skin that works to absorb, scatter or reflect ultraviolet light. Therefore, it is necessary to use the ingredients to become active ingredients in sunscreen. The research objectives are to (a) To determine the total flavonoid content and total polyphenol content of avocado peel extract (Persea americana Mill.). (b) Knowing the sunscreen activity of avocado skin extract (Persea americana Mill.). This type of exploratory experimental research is based on a quantitative approach. The results showed that avocado skin extract (Persea americana Mill.) has a total flavonoid content of 10.855 mgQE/g extract and a total polyphenol content of 221.593 mgGAE/g extract. It is known that avocado peel extract (Persea americana Mill.) has sunscreen activity with an SPF value of 3.887 at a concentration of 500 ppm including minimal protection category. The results of the activity test showed that avocado skin sunscreen potential had phenolic comp
Peningkatan Pertumbuhan Serta Hasil Panen Jagung Dengan Mengimplementasikan Jarak Dan Kedalaman Tanam Bersama Wanita Tani Desa Air Duren Holidah Holidah; Rahmatiyah Rahmatiyah
Botani : Publikasi Ilmu Tanaman dan Agribisnis Vol. 2 No. 1 (2025): Januari : Botani : Publikasi Ilmu Tanaman dan Agribisnis
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/botani.v2i1.162

Abstract

In Indonesia, maize has replaced rice as the staple food. However, many farmers fail to achieve optimal maize growth rates and yields because the maize planting techniques developed by them depend only on their knowledge and understanding of the relevant sciences relevant to maize planting. To determine the effect of applying different spacing and planting depths on the growth and yield of maize was the objective of this study. A factorial RAK model with two factors was used in this study. There were three levels of planting distance notation (J) in this RAK: 70 x 25 cm for Planting Distance 1, 70 x 40 cm for Planting Distance 2, and 75 x 50 cm for Planting Distance 3. There were also four levels of planting depth notation (K): 3 cm for Depth 1, 5 cm for Depth 2, 7 cm for Depth 3, and 8 cm for Depth 4. The results showed that it could really affect the growth and yield of corn at the correlation of spacing 75 x 50 cm and depth 5 cm. Farm women also contribute to this activity with their experience and skills because the higher the presence of farm women who contribute will make the results of corn farming higher.
Co-Authors Holidah Holidah Muh. Amir Masruhim Nurul Fitriani