Penetapan Kadar Fenolik Total dari Ekstrak Etanol Bunga Rosella (Hibiscus Sabdariffa L.) Berwarna Ungu Menggunakan Spektrofotometri Uv-vis

One of the herb plants, purple Roselle flowers (Hibiscus sabdariffa L), used to traditionally for various diseases. The aim of this research is to determine the total phenolic content of ethanol extract of purple Roselle flowers. Sample as many one kilograms extracted by maceration method using ethanol 96%. Resulty 120 grams thick extract. Total phenolic content determined by UV-Vis spectrophotometer at wave leght 743 nm with gallic acid as standard reference with Folin-Ciocalteau reagent. The result show the rendamen of ethanolic extract 12% with total phenolic content 1.6726 %

Uji Aktivitas Antiradikal Bebas Ekstrak Etanol Daun Kemangi (Ocimum Basilicum L.) dengan Menggunakan Metode Dpph

Basil leaves (Ocimum basilicum L.) the plant of the family Lamiaceae that can act as a free radical scavenger, flavonoid compounds. The aim of this research to determine and calculate the IC50 (Ocimum basilicum L.) that has activity as a free radical based on the binding free radical (1,1 diphenyl picryl-hydrazyl). Samplemasceration with ethanol, where in the amount of the extract obtained is 10.16 gr. At the free radical scavenging test ethanol extract has moderate activity with IC50 value is 52.68 μg/mL lower than quercetin with IC 50 value is 1.8 μg/mL

Pengujian Aktivitas Antiokidan Ekstrak Terpurifikasi Daun Teh Hijau dan Jati Belanda

Teh hijau memiliki nama spesies Camellia sinensis (L.) Kuntze, family Theaceae dan Jati belanda (Guazuma ulmifolia Lam.) termasuk kedalam family sterculiaceae. Ekstrakse dengan metode maserasi termodifikasi microwave dengan pelarut air. Purifikasi ekstrak dengan menggunakan pelarut dengan tingkat kepolaran yang berbeda-beda dimulai dengan petroleum eter, kloroform, etil asetat dan metanol. Pengujian aktivitas antioksidan dengan metode peredaman radikal DPPH. Hasil penelitian dipeoleh rendamen ekstrak terpurifikasi ekstrak teh hijau 13,33 % dan jati belanda 46,66 %.Pengujian antioksidan menunjukkan nilai IC50 jati belanda yaitu 10,13 ppm, lebih besar dibandingkan teh hijau yaitu 31,13 %

Penetapan Kadar Fenolik Total dari Ekstrak Etanol Bunga Rosella Berwarna Merah (Hibiscus Sabdariffa L.) dengan Menggunakan Spektrofotometri Uv-vis

Essential ingredients comfounds in roselle (Hibiscus sabdariffa L.) petals is anthocyanin pigments which include flavonoid that acts as an antioxidant. The aim of this research is to determine content of total phenolic of red roselle flowers (Hibiscus sabdariffa L.) ethanol extract. Sample as many one kilograms extracted by maceration method using ethanol 96%. Resulty 127,03 grams extract. Total phenolic content determined by UV-Vis spectrophotometer at wavelenght 737 nm with gallic acid equivalent as standard reference with Folin-Ciocalteau reagent. The result show the rendamen of ethanolic extract is 12.703% with total phenolic content is 0.1853%

Penetapan Kadar Flavonoid Total Ekstrak Daun Cengkeh (Syzygium Aromaticum (L.) Merr & Perry)

Clove (Syzygium aromaticum (L.) Merr & Perry) is one of the plants used as medicine, society used leaves as anti-inflammatory drugs at the time of toothache, which at the leaf contained flavonoids. The aim of this study is to determine the content of total flavonoid of ethanol extract clove leaf (EECL). Clove leaf was extracted using maceration method with ethanol as a solvent during at 3 x 24 hours. Analysis qualitative of flavonoids compound using thin layer chromatography method. Determination of total flavonoids content of clove leaves using spectrophotometri UV-Vis method λ 418 nm. The result of the research with rendamen yield of EECL were 16,1134%, and total flavonoids content is 73,08 mgRE/g extract with persentation 7,308%

Uji Aktivitas Larvasida Ekstrak Daun Jarak Kepyar (Ricinus Communis L.) Terhadap Larva Nyamuk Aedes Aegypti

Castor Plant (Ricinus communis L.) belongs to Euphorbiaceae family. In medicine has been used as antioxidant, antihistaminic, antifertility, antimicrobial, antidiabetic, antiinflammatory, antipyretic, and it has activities to larvacidal, molluscicidal and insecticidal. The aim of this study was to determine the level of mosquito larva (Aedes aegypti) mortality after giving of ethanolic extract showed with LC50. Extract obtained by maceration method, rendamen ethanolic extract obtained as much as 6.073%. This research uses 110 instar, III larvae of mosquito (Aedes aegypti), divided into test solution are made with 3 concentrations (10 µg/mL, 100 µg/mL, 1000 µg/mL), positive control using Abate and negative control using water. Observations were made after 24 hours of treatment. Toxicity test results shows ethanolic extract is an extract that is active as Larvacidal showed LC50 as much as 138,995 ± 1,5 µg/mL < 1000 µg/mL. Based on qualitative testing of the chemical component using TLC method known ethanolic extract of Castor Plant (Ricinus communis L.) leaves contain alcaloids, saponins and flavonoids

KEPRIBADIAN GURU MENURUT PANDANGAN K.H. HASYIM ASY’ARI: TELAAH TERHADAP KARYA-KARYA K.H. HASYIM ASY’ARI

Pendidikan di indonesia saat ini cenderung menekankan aspek kognitif dan pengembangan intelektual melalui pendekatan saintifik. Guru merupakan salah satu komponen penting terhadap tercapainya tujuan tersebut. Idealnya seorang guru harus memiliki kompetensi sesuai dengan UU Guru dan Dosen. Oleh karenanya, guru semestinya dapat dijadikan sebagai profil idola, sehingga faktor terpenting bagi seorang guru adalah kepribadiannya. Namun kenyataannya, banyak ditemui kasus yang menandai kemerosotan moral seorang guru, sehingga jelas terlihat menurunnya kewibawaan guru. Selain itu, ditemukan data statistik dari Kementerian Pendidikan Nasional yang menunjukkan kualitas SDM guru di indonesia berada pada urutan 109 dari 179 negara di dunia. Seorang guru tidak sekedar menjadi tenaga pengajar, tetapi sekaligus sebagai pendidik, sehingga seharusnya guru tidak hanya memenuhi standar kualifikasi keilmuan dan akademisnya saja, melainkan lebih penting lagi ia harus memiliki kepribadian yang baik. Membumikan refleksi pemikiran K.H. Hasyim Asy’ari yang merupakan tokoh nasional masyhur baik dari segi keilmuan dan kepribadiannya yang menjadi rujukan para Founding Fathers Republik Indonesia menjadi solusi untuk mengatasi problematika kekinian yang berkaitan dengan degradasi moral bangsa. Penelitian ini bertujuan untuk mendeskripsikan Konsep dasar kepribadian guru, aspek-aspek dan unsur-unsur kepribadian serta cara mewujudkan kepribadian guru ideal. Penelitian ini menggunakan pendekatan kualitatif dengan metode study literatur. Peneliti menjadi instrumen kunci dalam penelitian ini. Sumber data yang digunakan berupa kitab Irsyād al-Sāri sebagai kumpulan 14 karya K.H. Hasyim Asy’ari. Analisis data penelitian dilakukan dalam bentuk reduksi data, display data, dan verifikasi. Hasil penelitian menunjukan bahwa konsep dasar kepribadian guru yang ditawarkan K.H. Hasyim Asy’ari meliputi sifat dan sikap serta penampilan seorang guru yang dihimpun dalam 40 unsur kepribadian dan dikategorikan ke dalam 4 aspek kepribadian. Kata Kunci: kepribadian guru, degradasi moral, pendidik Education in Indonesia currently tends to emphasize cognitive aspects and intellectual development through a scientific approach. The teacher is an important component of achieving these goals. Ideally, a teacher must have competence in accordance with the Teacher and Lecturer Law. Therefore, the teacher should be used as an idol profile, so the most important factor for a teacher is his personality. However, in reality, there are many cases which indicate the moral degradation of a teacher, so that it clearly shows the decreasing authority of the teacher. In addition, statistics found from the Ministry of National Education show that the quality of teacher human resources in Indonesia ranks is 109 th out of 179 countries in the world. A teacher is not just a teacher, but also as an educator, so the teacher should not only meet the standards of scientific and academic qualifications, but more importantly he must have a good personality. Implement reflection of K.H's thoughts. Hasyim Asy'ari who is a well-known national figure both in terms of science and personality, which is become reference of the Founding Fathers of the Republic of Indonesia, is a solution to overcome the current problems related to the moral degradation of the nation. This study aims to describe the basic concepts of the teacher's personality, aspects and elements of personality and how to realize the ideal teacher's personality. This study uses a qualitative approach with the literature study method. The researcher is a key instrument in this research. The data source used in the form of the book Irshad al-Sāri as a collection of 14 works of K.H. Hasyim Asy'ari. Analysis of research data is carried out in the form of data reduction, data display, and verification. The results showed that the basic concepts of teacher personality were offered by K.H. Hasyim Asy'ari covers the nature, attitude and appearance of a teacher who is gathered in 40 personality elements and categorized into 4 aspects of personality. Keywords: teacher's personality, the national moral decadency, educato