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All Journal BioWallacea Journal of Biological Research Jurnal Ilmiah Biosaintropis (Bioscience-Tropic) Daun: Jurnal Ilmiah Pertanian dan Kehutanan Journal on Education BIO-EDU: Jurnal Pendidikan Biologi Kenanga : Journal of Biological sciences and Applied Biology Jurnal Sains dan Pendidikan Biologi
Ridwan Ridwan
Universitas Muslim Buton
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Environmental Science Immunology & microbiology Social Sciences Veterinary

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Journal : Jurnal Sains dan Pendidikan Biologi

 1 
Identifikasi Tipe Stomata Pada Bebarapa Jenis Tumbuhan Dikotil Dan Monokotil: Identifikasi Tipe Stomata Pada Bebarapa Jenis Tumbuhan Dikotil Dan Monokotil Ridwan -; La Ode Abdul Hasidu; Hartina Rumakefing
Jurnal Sains dan Pendidikan Biologi Vol 1 No 1 (2022): April tahun 2022
Publisher : Universitas Muslim Buton

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Stomata are clefts of the epidermis, each lined by two guard cells. In Greek, stoma means "mouth", and the term is often used only for the stomatal pore. Stomta has long been the object of study of morphology, anatomy and physiology. In general, several technical terms are known, such as stoma, stomata complex, neighboring cells and daughter cells. In general, several technical terms have been known, such as stoma, stomata complex, neighboring cells and daughter cells. The term has been used in different meanings by groups of botanical researchers. This study was conducted to determine the type of stomata in several types of dicotyledonous and monocot plants. The study used a qualitative descriptive method to describe and describe the type of stomata in several types of dicotyledonous plants and monocotyledonous plants. The object of this research uses the abaxil leaf of several types of plants including dicotyledonous plants which include soursop (Annona muricata), mango (Mangifera indica), noni (Morinda citrifolia), breadfruit (Artocarpus altilis), and monocot plants which include: palm leaves, banana leaves, papaya leaves (Carica papaya) and turmeric leaves (Curcuma longa). The research was carried out through several stages, namely the preparation of leaf samples, making leaf preparations, observing under a microscope, documenting and describing the forms of stomata. The results showed that dicot and monocot plants have different types of stomata. Several types of plants also have the same type of stomata. Soursop (Annona muricata) has Paracytic stomata type; Mango (Mangifera indica) has anomocytic stomata type; Noni (Morinda citrifolia) has Paracytic stomata type; Breadfruit (Artocarpus altilis) has Actinocytic stomata type; The palm (Oreodoxa regia) has a Tetracytic stomata type; Banana (Musa sp.) has anomocytic stomata type; Papaya (Carica papaya) has Hemiparacytic stomata type; and Turmeric (Curcuma longa) has Paracytic stomata type.
Uji Aktivitas Antioksidan Ekstrak Etanol Kulit Batang Kemiri (Aleurites moluccana L.) Dengan Metode DPPH (1,1-Diphenyl-2-Picrylhidrazyl): Uji Aktivitas Antioksidan Ekstrak Etanol Kulit Batang Kemiri (Aleurites moluccana L.) Dengan Metode DPPH (1,1-Diphenyl-2-Picrylhidrazyl) Keyman -; Ridwan -
Jurnal Sains dan Pendidikan Biologi Vol 1 No 1 (2022): April tahun 2022
Publisher : Universitas Muslim Buton

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Candlenut bark is a source of various bioactive compounds with antioxidant potential and or free radical neutralization. This study investigated the antioxidant activity of candlenut bark extract. The research was carried out through several stages including: sample preparation, sample extraction, making reagents, making ethanol extracts, making vitamin C solutions, measuring the maximum wavelength of DPPH, and measuring the absorbance of free radical neutralization using the DPPH method. The results showed that the ethanol extract of candlenut stems had antioxidant activity as indicated by the higher the volume of ethanol extract added to the test solution, the higher the percentage of free radical neutralization. The ratio of the volume with the percentage of free radical neutralization, which is 10 mg/mL has a free radical neutralization percentage of 8.90%, 25 mg/mL has a neutralization percentage of 26.03%, 50 mg/mL has a neutralization percentage of 44.52%, and 75 mg/mL has a neutralization percentage of 65.75%.
Identification And Phytochemical Testing Of Traditional Medicinal Plants Of The North Buton Community Ridwan -
Jurnal Sains dan Pendidikan Biologi Vol 2 No 1 (2023): Education and Sains
Publisher : Universitas Muslim Buton

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Medicinal plants play a very vital role in their use for medicine, in addition to providing ecological, economic and cultural benefits. Since ancient times, plants have been used as a source of effective and safe medicines. Plants can have medicinal properties because they contain secondary metabolites or other bioactive compounds. This study uses samples of medicinal plants that have been used by the people of North Buton as traditional medicine for hundreds of years. This plant has never been reported in previous studies. This study aims to determine the types of medicinal plants and the phytochemical content contained in these plants. The research was conducted with several stages of identification and phytochemical testing. The phytochemicals analyzed included flavonoid alkaloids, tannins, steroids, terpenoids, saponins and phenols. Phytochemical tests were carried out on plant organs, namely roots, stems and leaves. The results of plant identification showed that the plant was a genus of Embelia. Furthermore, the results of phytochemical tests showed that the roots and stems of Embelia sp. contains flavonoids, alkaloids, steroids, saponins, tannins and phenols. Furthermore, the leaves of Embelia sp. contains alkaloids, steroids, saponins, tannins and phenols.
Co-Authors Asriyani Asriyani Dewi Asriani Ridzal Hartina Rumakefing Haswan Haswan Irma Irma kaharudin, la ode Keyman - La Ode Abdul Hasidu La Ode Kaharudin La Ode Kaharudin Mega Mustikasari Muh. Suismawansyah Muhamad Noor Azizu Peliyarni Peliyarni Ramayanti Romalita Rostia Rostia Veni Rosnawati Wulan Riski Yanti Yandi Yandi