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All Journal Jurnal Biologi Tropis Biota Community Development Journal: Jurnal Pengabdian Masyarakat Bioscientist : Jurnal Ilmiah Biologi Jurnal Agroindustri Berkelanjutan
Pertiwi, Vera
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Medicine & Pharmacology Public Health Social Sciences

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Analysis of Biomass Organic and Inorganic Carbon Stocks in Silokek Karst Geopark Area, Sijunjung Regency Pertiwi, Vera; Chairul, Chairul; Syamsuardi, Syamsuardi
Biota Vol 17 No 2 (2024)
Publisher : Universitas Islam Negeri Mataram

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

Abstract

Climate change caused by increasing greenhouse gas emissions, especially CO2, and deforestation, is an urgent global issue. The REDD+ program initiated by the UN aims to reduce carbon emissions and increase carbon storage in forests. This research aims to measure and analyze biomass and organic and inorganic carbon reserves in the Silokek Geopark area, Sijunjung Regency. The method used in this research is non-destructive sampling and using a destructive sampling method. Transects were carried out using the transect method using purposive sampling and were made in 10 plots 100 m long with square plots measuring 10x10 m for trees, 5x5 m for saplings, and 2x2 m for undergrowth. Next, the limestone samples used the chip sampling method and XRF analysis. The research results showed that the total organic biomass was 326,748 tons/ha, carbon reserves were 153,571 tons/ha, and carbon absorption was 563,607 tons/ha, which is categorized as high. The inorganic carbon content in the Silokek Geopark karst area is 4,908.07 tons/ha and inorganic carbon absorption is 18,012.60 tons/ha
KARAKTERISTIK FISIK DAN SENSORI TEH CELUP DAUN KERSEN (Muntingia calabura L.) DENGAN PENAMBAHAN BUNGA MELATI (Jasminum sambac L.) DAN KULIT KAYU MANIS (Cinnamomum burmannii) PHYSICOCHEMICAL AND SENSORY CHARACTERISTICS OF KERSEN (Muntingia calabulara L.) TEA BAG WITH THE ADDITION OF JASMINE FLOWER (Jasminum sambac L.) AND CINNAMON SKIN (Cinnamomum burmannii) Pertiwi, Vera; -, Murhadi; Hidayati, Sri; Sartika, Dewi
Jurnal Agroindustri Berkelanjutan Vol. 3 No. 1 (2024)
Publisher : Jurusan Teknologi Hasil Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jab.v3i1.8795

Abstract

Kersen leaves are a herbal plant that has various health benefits, especially as a medicine for diabetes sufferers. Kersen leaves can be processed into tea bags, but they still have sensory deficiencies in terms of color, aroma and taste. This research aims to determine the effect of adding jasmine flowers and cinnamon and their interaction on the sensory and physical characteristics of kersen leaf tea bags. The method used in this research was a Complete Randomized Block Design (RAKL) with two factors, namely the addition of jasmine flowers which consisted of 3 levels, namely M1 (10%), M2 (20%) and M3 (30%). The second factor, namely the addition of cinnamon powder, consists of 6 levels, namely K0 (0%), K1 (3%), K2 (6%), K3 (9%), K4 (12%) and K5 (15%). The data obtained were analyzed for variance and analyzed further with further Orthogonal Polynomial tests at the 5% and 1% levels. The results of the research showed that the addition of jasmine flowers and cinnamon had a very significant effect on the color, aroma and taste as well as the brightness level of the kersen leaf tea bag. The interaction between the two has a real influence on the color and taste as well as the brightness level of the brew but has no real influence on the aroma of kersen leaf tea bags. Based on research results, kersen leaf tea bags with the addition of jasmine flower concentration of 10% (w/w) and cinnamon concentration of 15% (w/w) produced the best treatment with color value of4.167  (brownish  yellow),  aroma  value  of  3.875  (not  unpleasant), taste  value  4.000  (not  bitter),  brew brightness level value of 22.850, water content value of 6.9% and ash content value of 5.9%.
Potential Carbon Content and Inorganic Carbon Sequestration in the Karst Area of Silokek Geopark, Sijunjung Regency Pertiwi, Vera; Chairul, Chairul; Syamsuardi, Syamsuardi
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i3.7432

Abstract

Climate change caused by increasing greenhouse gas emissions, especially CO2, and deforestation, is an urgent global issue. The REDD+ program initiated by the UN aims to reduce carbon emissions and increase carbon storage in forests. One of the forests that can reserve carbon is the karst area with the ability to reserve carbon dioxide (CO2). This study aims to determine the potential carbon content and carbon dioxide (CO2) sequestration. This study was conducted using the chip sampling method and the XRF (X-ray Fluorescence) method analysis. Based on the research results, it is known that the Silokek Geopark karst area has three different limestone rock characteristics, and sample 3 is the type of rock with the highest CaO percentage. The potential inorganic carbon content is 4,908.07 tons/ha and carbon absorption is 18,012.60 tons/ha, categorized as high. The inorganic carbon content in the Silokek Geopark area is lower than the Biduk-biduk Karst area which is influenced by the area volume area and type of rock composition.
Analisis Vegetasi Tumbuhan Tingkat Pohon di Kawasan Geopark Silokek Kabupaten Sijunjung Pertiwi, Vera; Chairul, Chairul
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 1 (2024): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i1.9231

Abstract

Silokek Geopark Area is a geopark area that is being appointed into a national geopark consisting of 25 geodiversity, 12 biodiversity, and 17 cultural diversity sites. The objective of the study is to determine the composition and structure of vegetation of trees in the Silokek Geopark area, Sijunjung Regency. This research has been conducted from September to December 2022 by using the transect method. The plot was made of 10 plots with a size of 10x10 meters for vegetation that is placed alternately on both sides of the transect. Identification is carried out at the Andalas University Herbarium. Based on the research results, 15 families, 19 genera, 22 species, and 30 individuals were found. The co-dominant families are Moraceae (20%), Ebenaceae (16.67%), and Euphorbiaceae (13.33%). The highest important value index of Ficus Stricta was obtained at 57.86% and the lowest in the Nephelium Lappaceum at 7.36%. The plant diversity index in this area is classified as moderate (H '= 2.85). It is recommended that the government to controlling the diversity of plants in the Silokek Geopark area, considering that this area is a tourist area.
DIVERSIFIKASI PRODUK BERBASIS TALAS UNTUK PENINGKATAN EKONOMI DESA TUAPEJAT MENTAWAI, SUMATRA BARAT Solfiyeni, Solfiyeni; Mairawita, Mairawita; Mildawati, Mildawati; Pertiwi, Vera; Fadhlan, Adli; Ritonga, Muhammad Azli; Kusuma, Hendra; Sophia, Anggun; Karimi, Kasman; Pujani, Vera
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 6 No. 2 (2025): Volume 6 No. 2 Tahun 2025
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v6i2.41699

Abstract

Desa Tuapejat adalah sebuah desa yang terletak di kepulauan Mentawai dengan hasil budidaya masyarakat salahsatunya adalah talas. Talas merupakan tanaman lokal yang melimpah di wilayah ini, namun pemanfaatannya masih terbatas pada konsumsi tradisional, dan bahkan talas kadang hanya dijadikan sebagai makanan ternak di wilayah tersebut. Untuk meningkatkan nilai perekonomian masyarakat maka telah dilakukan kegiatan pelatihan pengolahan umbi talas menjadi berbagai macam makanan di desa Tuapejat. Kegiatan diikuti oleh peserta mitra dengan latar belakang ibu rumah tangga dan anggota PKK desa Tuapejat. Kegiatan pengabdian kepada masyarakat ini bertujuan untuk meningkatkan pengetahuan dan keterampilan masyarakat dalam pengolahan umbi talas, meningkatkan diversifikasi produk olahan umbi talas untuk menciptakan nilai tambah dan untuk meningkatkan pendapatan masyarakat melalui pemasaran produk olahan talas. Program ini melibatkan sosialisasi dan praktik pembuatan berbagai olahan talas, seperti keripik talas dengan aneka rasa, nugget talas, cake talas, bola-bola talas isi cokelat, dodol talas cokelat, dan keripik talas balado. Peserta mitra diajarkan bagaimana pemilihan talas yang baik, cara mengupas, pengolahan dan pengemasan produk yang sudah jadi. Hasil dari kegiatan ini menunjukkan bahwa para peserta, terutama ibu-ibu, mulai memproduksi dan menjual olahan berbasis talas secara kelompok maupun mandiri. Tim selalu memberikan pendampingan terhadap peserta mitra untuk memantau dan memberikan penyuluhan agar peserta mitra dapat meningkatkan produksi dan penjualannya. Kegiatan ini berkontribusi pada peningkatan keterampilan peserta serta membuka peluang usaha baru yang dapat meningkatkan pendapatan keluarga.
Co-Authors -, Murhadi Anggun Sophia Chairul Chairul DEWI SARTIKA Fadhlan, Adli Hendra Kusuma Karimi, Kasman Mairawita, Mairawita Mildawati Mildawati Ritonga, Muhammad Azli Solfiyeni Solfiyeni Sri Hidayati Syamsuardi Syamsuardi Vera Pujani