Article Per Year (5 Year)
p-Index From 2019 - 2024
0.817
P-Index
This Author published in this journals
All Journal Alchemy : Journal of Chemistry Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Journal of Saintech Transfer
Boby Cahyady
Universitas Sumatera Utara
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Social Sciences Other

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
Biopesticide for overcoming caterpillar pests on cabbage plant (Brassica oleracea L) Taufik, Muhammad; Cahyadi, boby; Tarigan, Enita Dewi br; Razali, Mariany
Journal of Saintech Transfer Vol. 3 No. 1 (2020): Journal of Saintech Transfer
Publisher : Talenta Publisher Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jst.v3i1.3946

Abstract

Bukit Rumah Sendi Farmer Group is one of the farmer groups in Ujung Sampun Village, which consists of 22 family heads. Ujung Sampun Village is one of the villages in Dolat Rayat subdistrict, Karo District in Provinsi Sumatera Utara. This partner distance is about 70 km from Universitas Sumatera Utara. Cabbage (Brassica oleracea L) is a commodity planted by this farmer group. Plutella xylostella caterpillars available in cabbage are very much needed from the harvest so they need to be eradicated. Garlic is a crop interrupted by farmers is one of the local commodities besides cabbage. Garlic (Allium sativum) which releases biopesticides can kill caterpillars on cabbage. This activity is to provide innovations about the appropriate technology of biopesticides from raw materials of garlic to eradicate caterpillars as pests of partner cabbage plant diseases. The activities that have been carried out are preparation of garlic as a raw material for biopestides, applying biopesticides to selected community cabbage land every day at 9 am for 30 days. The results show that biopesticides are very effective in killing caterpillar pests with a mortality rate of 95%.
Analisis Kadar Arsen (As) pada Sayur Kubis Hijau (Brassica oleracea L.) Pasca Erupsi Gunung Sinabung Cahyady, Boby; Taufik, Muhammad; Suharman, Suharman
ALCHEMY Vol 9, No 1 (2021): ALCHEMY: Journal of Chemistry
Publisher : Department of Chemistry, Faculty of Science and Technology UIN Maulana Malik Ibrahim Malan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/al.v9i1.11108

Abstract

ount Sinabung has had an impact on the lives of surrounding farmers after the eruption. One of the negative impacts is the exposure of plants and animals around them to dangerous chemical compounds, especially heavy metals. This work aimed to analyze the levels of arsenic (As) in green cabbage (Brassica oleracea L.) which was exposed after two months of the eruption. The sampling method was done using a simple random sampling technique at five points. The digestion process was carried out using hydrochloric acid and nitric acid. Arsenic analysis was performed using the atomic absorption spectroscopy (AAS) at 193.7 nm with vapor hydride generation accessories. Concentration of arsenic exposed to green cabbage at five sampling points was 0.4102, 0.4936, 0.4501, 0.6425, and 0.6534 mg/Kg. The results obtained were lower than the maximum limit of arsenic contamination in vegetables, namely 1.0 mg/Kg based on SNI No. 7387:2009.Keywords: arsenic, Brassica oleracea L, AAS, SNI, Mount SinabungGunung Sinabung memiliki pengaruh kepada kehidupan petani di sekitarnya pasca erupsi. Salah satu dampak negatifnya adalah terpaparnya tumbuhan dan hewan di sekitar terhadap senyawa kimia yang berbahaya, khususnya logam berat. Penelitian ini bertujuan untuk menganalisis kadar arsen (As) yang terdapat pada sayur kubis hijau (Brassica oleracea L.) yang terpapar setelah dua bulan erupsi. Pengambilan sampel dilakukan dengan menggunakan teknik simple random sampling di lima titik. Proses destruksi dilakukan dengan menggunakan asam klorida dan asam nitrat. Analisis arsen dilakukan dengan menggunakan atomic absorption spectroscopy (AAS) pada panjang gelombang 193,7 nm yang dilengkapi vapour hydride generation accessories. Kadar arsen yang terpapar pada sayur kubis hijau pada lima titik pengambilan sampel berturut turut sebesar 0,4102; 0,4936; 0,4501; 0,6425, dan 0,6534 mg/Kg. Kadar arsen yang diperoleh lebih rendah dari batas maksimum cemaran arsen dalam sayuran yakni 1,0 mg/Kg berdasarkan SNI No. 7387:2009.Kata kunci: arsen, Brassica oleracea L., AAS, SNI, Gunung Sinabung
Production of natural hand sanitizers from Aloe vera (Aloe vera), Rambutan (Nephelium lappaceum L.) and Lime (Citrus aurantiifolia) skins, Betel leaf (Piper betle) and Eucalyptus grandis leaves Taufik, Muhammad; Cahyady, Bobby; Razali, Mariany; Ardilla, Desi
Journal of Saintech Transfer Vol. 4 No. 1 (2021): Journal of Saintech Transfer
Publisher : Talenta Publisher Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jst.v4i1.6427

Abstract

The utilization of plant parts that are not used is very important in order to minimize organic waste. Rambutan (Nephelium lappaceum L.) rind has antibacterial properties which can be used as raw material. The same goes for the skin of lime peel (Citrus aurantiifolia), Betel leaf (Piper betle), Aloe vera (Aloe vera) and Eucalyptus grandis leaves. Eucalyptus grandis is a product that is not harvested in Industrial Plantation Forests which are grown by the community and green Industry in North Sumatra. The part used is the plant stem which is used as a material for making pulping. The extraction process was carried out used steam distillation. In this work, the analysis of active compound used GCMS instrument. The result of the analysis showed that there was 1.8 Sineol as much as 52%. This compound was used as an antiseptic and give a fragrant aroma. This work aims to produced of natural hand sanitizers used Eucalyptus grandis as an odorant and antiseptic agent which used to prevent the transmission of Covid19 in Kotamatsum IV sub district, Medan City. The resulting product was a hand sanitizer that is safe to use and friendly to the environment. The natural hand sanitizer products can be used by the community in reducing the transmission of Covid19 and can increase people's income.
Application of Biopesticide from Eucalyptus grandis on Mortality of Fruit Flies (Bactrocera sp.) on Sweet Citrus (Citrus X Sinensis) Plants Muhammad Taufik; Cut Fatimah Zuhra; Boby Cahyady; Rini Hardiyanti; Desi Ardilla; Mariany Razali; Zul Alfian
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 7 No. 1 (2022): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1175.886 KB) | DOI: 10.32734/abdimastalenta.v7i1.6931

Abstract

The application of biopesticides is one of the safest alternatives to realize organic agriculture that does not cause harmful impacts to both consumers and the environment. This activity aims to apply biopesticides in eradicating fruit flies (Bactrocera sp.) on Sweet Orange (Citrus X Sinensis) plants. The partner location is the Bukit Rumah Sendi Farmers Group in Karo Regency. Eucalyptus grandis leaves were extracted using steam distillation then the concentration of 1,8 Sineol was determined using GCMS and the concentration was 52%. Eucalyptus oil was mixed with kerosene and detergent then determined the LC50 value in fruit flies and observed for 24, 48, 72, and 96 hours and produced an LC50 value of 35%. This shows that biopesticides are quite effective in eradicating fruit flies.
Co-Authors Cut Fatimah Zuhra Desi Ardilla Mariany Razali Muhammad Taufik MUHAMMAD TAUFIK Razali, Mariany Rini Hardiyanti Suharman Suharman, Suharman Tarigan, Enita Dewi br Zul Alfian