Bioscientist最新文献

Keanekaragaman Kelas Crustacea Sub-Kelas Malacostraca pada Ekosistem Mangrove Pantai Padadita Kabupaten Sumba Timur 东松巴省 Padadita 海滩红树林生态系统中甲壳动物 Malacostraca 亚类的多样性

Bioscientist Pub Date : 2023-06-30 DOI: 10.33394/bioscientist.v11i1.7459

Aloysius Rivaldi Talo, Anita Tamu Ina

引用次数: 0

Kapasitas Total Antioksidan dan Uji Toksisitas Ekstrak Bunga Kecombrang (Etlingera elatior (Jack) R.M.Sm) 蟑螂提取物(杰克)的总抗氧化能力和毒性测试

Bioscientist Pub Date : 2023-06-30 DOI: 10.33394/bioscientist.v11i1.9203

Faiz Agung Hermawan, Frans Ferdinal

{"title":"Kapasitas Total Antioksidan dan Uji Toksisitas Ekstrak Bunga Kecombrang (Etlingera elatior (Jack) R.M.Sm)","authors":"Faiz Agung Hermawan, Frans Ferdinal","doi":"10.33394/bioscientist.v11i1.9203","DOIUrl":"https://doi.org/10.33394/bioscientist.v11i1.9203","url":null,"abstract":"Oxidative stress is imbalance between antioxidant production and the formation of free radicals, which are involved in the development of degenerative diseases. Declining organ function is a symptom of degenerative diseases. The antioxidant helps protect the body from free radicals and prevent oxidative stress. Antioksidan classified into exogenous and endogenous. (Etlingera elatior (Jack) R.M.Sm) flower is known for its antioxidants. This study aimed to establish the toxicity and antioxidant features of kecombrang flower. Total antioxidant capacity test by Blois 1,1 Diphenyl-2Picryhydrazyl (DPPH) method, toxicity test by Brine Shrimp Lethality Test (BSLT) method. After acquiring simplicia by grinding and aerating the flowers, the extract was obtained by the maceration process using methanol as the solvent and evaporation. The extract was then analyzed. The total antioxidant capacity test showed an IC50 of 931.53 g/mL, indicating that kecombrang flower has a low total antioxidant capacity. Based on the results of the toxicology tests, the LC50 value for the kecombrang flower extract was 612.66 g/mL, indicating that it possessed toxic properties. This study concluded that kecombrang flower extract was shown to have low antioxidant levels and potential antimitotic activity.","PeriodicalId":479964,"journal":{"name":"Bioscientist","volume":"208 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136365879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Kapasitas Total Antioksidan dan Uji Toksisitas Ekstrak Daun Binahong (Anredera cordifolia (Ten.) Steenis) 野红叶提取物(10)的总抗氧化剂和毒性试验。Steenis)

Bioscientist Pub Date : 2023-06-30 DOI: 10.33394/bioscientist.v11i1.9202

Rebecca Rebecca, Siufui Hendrawan

{"title":"Kapasitas Total Antioksidan dan Uji Toksisitas Ekstrak Daun Binahong (Anredera cordifolia (Ten.) Steenis)","authors":"Rebecca Rebecca, Siufui Hendrawan","doi":"10.33394/bioscientist.v11i1.9202","DOIUrl":"https://doi.org/10.33394/bioscientist.v11i1.9202","url":null,"abstract":"Oxidative stress is an imbalance between the production of Reactive Oxygen Species (ROS) and antioxidants in the body. One plant that contains antioxidants is binahong leaves (Anredera cordifolia (Ten.) Steenis). To determine the compound content contained in binahong leaves, a total antioxidant capacity test and toxicity test were carried out on binahong leaves. This research used an in-vitro experimental study consisting of an antioxidant capacity test with DPPH (1.1-diphenyl-1-picrylhydrazil) and a bioassay, namely a toxicity test with the Brine Shrimp Lethality Test (BSLT) from binahong leaf extract. Extraction of binahong leaves is carried out using the maceration method using methanol solvent and then evaporated to obtain the extract. The total antioxidant capacity test was carried out using the Blois method, the Brine Shrimp Lethality Test (BSLT) toxicity test using the Meyer method. In the antioxidant capacity test, the IC50 value was 284.199 μg/mL, which means that the antioxidant capacity of binahong leaf extract is relatively low. In the toxicity test, the LC50 was obtained at 302.25 μg/mL, which means that binahong leaf extract has a level of toxicity against (Artemia salina L.) shrimp larvae. So it can be concluded that binahong leaf extract has relatively low antioxidant capacity and has toxic properties which are thought to have antimitotic properties.","PeriodicalId":479964,"journal":{"name":"Bioscientist","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136366033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pengaruh Pembelajaran Accelerated Include Blended Learning Berbasis Penguatan Karakter Mahasiswa 以加强学生性格为基础的加速学习混合学习的影响

Bioscientist Pub Date : 2023-06-30 DOI: 10.33394/bioscientist.v11i1.7744

Ika Nurani Dewi, Sumarjan Sumarjan, Sri Nopita Primawati

{"title":"Pengaruh Pembelajaran Accelerated Include Blended Learning Berbasis Penguatan Karakter Mahasiswa","authors":"Ika Nurani Dewi, Sumarjan Sumarjan, Sri Nopita Primawati","doi":"10.33394/bioscientist.v11i1.7744","DOIUrl":"https://doi.org/10.33394/bioscientist.v11i1.7744","url":null,"abstract":"The aim of the study was to determine the effect of the implementation of Accelerated Include Blended Learning based on character strengthening on the character of discipline, independence, and student responsibility. This type of research is a quantitative descriptive research using a survey approach. The research sample consisted of 74 students Department of Forestry in the first semester of the 2021/2022 academic year. Purposive random sampling was used as a sampling technique. The research instrument consisted of a character self-assessment questionnaire which before use was tested for the validity and reliability of Cronbach's Alpha. The data analysis technique uses the F test to determine the effect of Accelerated Include Blended Learning on the formation of student character. The results showed that: 1) Accelerated Include Blended Learning had an effect on students' independent character in class A and B with a significance value of p < 0.05; 2) Accelerated Include Blended Learning had an effect on the discipline character of students in class B with a significance value of p < 0.05, but has no effect on class A students with a significance value of 0.262 > 0.05; and 3) Accelerated Include Blended Learning influences the character of the responsibilities of class A and B students with a significance value of p < 0.05.","PeriodicalId":479964,"journal":{"name":"Bioscientist","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136254387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0