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All Journal Prosiding Seminar Biologi Pharmaciana: Jurnal Kefarmasian BIOWALLACEA Bio Ilmi: Jurnal Pendidikan REiD (Research and Evaluation in Education) Jurnal Pendidikan Biologi Jurnal Bioedukatika Indonesian Journal of Biology Education JURNAL BIOSHELL Proceeding Biology Education Conference Jurnal Penelitian Sains dan Pendidikan (JPSP) Ahmad Dahlan Medical Journal Bincang Sains dan Teknologi
Novi Febrianti
Universitas Ahmad Dahlan
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Education Electrical & Electronics Engineering Energy Engineering Health Professions Immunology & microbiology Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Transportation Other

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KANDUNGAN ANTIOKSIDAN ASAM ASKORBAT PADA BUAH-BUAHAN TROPIS Febrianti, Novi
BIOWALLACEA Vol 2, No 1 (2016): BioWallacea Vol 2 No 1
Publisher : Program Studi Biologi FMIPA Universitas Mataram

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Abstract

Tropical fruits are rich in nutrients and phytochemicals that benefit our health. As source ofantioxidant, regular consumption of fruits will be useful in avoiding many degenerative diseasesparticularly caused by free radicals. The good effects of antioxidants vary from repairing tissuedamages in respiratory system, excretory system as well as reproductive system. Ascorbic acid is onepotent antioxidant that has been recorded for history. Known as Vitamin C, its concentration in fruitshas been a primary consideration for people to choose what kind of fruit they are going to consume.This experiment’s result exhibited different levels of ascorbic acid in some tropical fruits. Averageconcentration of ascorbic acid from the highest to lowest was obtained in avocado,orange, strawberry,guava, apple, papaya, tamarind and mango with their contents of 119,8; 96,8; 66,65; 49,86; 49,57; 48,4and 41,06 mg/100g, respectively. This result would be a baseline in setting the best fruit combinationto obtain maximum effects of antioxidant.Keywords: tropical fruits, antioxidants, ascorbic acid
Peningkatan Prestasi Belajar Mahasiswa Semester VII pada Mata Kuliah Teknologi Fermentasi melalui Implementasi Metode Eksperimen Prastowo, Indro; Susilo, Muhammad Joko; Febrianti, Novi; Aprilia, Nani; Irawati, Hani; Hanafi, Yahya
JURNAL BIOEDUKATIKA Vol 2, No 2 (2014)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (388.943 KB) | DOI: 10.26555/bioedukatika.v2i2.4123

Abstract

Mata kuliah Teknologi Fermentasi merupakan salah satu mata kuliah pilihan pada Program Studi Pendidikan biologi Universitas Ahmad Dahlan yang bertujuan untuk memberikan ketrampilan kepada mahasiswa agar mampu memanfaatkan mikrobia untuk menghasilkan berbagai produk fermentasi. Selama ini pembelajaran pada mata kuliah Teknologi Fermentasi dilakukan dengan metode ceramah Penggunaan metode ceramah membuat mahasiswa pasif dan hasil belajarnya rendah. Untuk meningkatkan hasil belajar mahasiswa dilakukanlah kegiatan Lesson Study.Aktivitas Lesson Study dibagi menjadi 3 aktivitas utama yaitu : plan, do, dan see, semua aktivitas dilakukan secara berkolaborasi antar dosen di program studi pendidikan biologi. Implementasi kegiatan Lesson Study (LS) melibatkan 1 orang dosen model dan 8 dosen sebagai observer serta 62 mahasiswa semester 7. Pada kegiatan pembelajaran mata kuliah Teknologi Fermentasi digunakan berbagai macam metode pembelajaranya yaitu: diskusi, presentasi, dan eksperimen dengan tujuan untuk meningkatkan hasil belajar mahasiswa.Kegiatan Lesson Study dilaksanakan selama empat siklus. Hasil penelitian menunjukkan bahwa dengan Implementasi Lesson Study hasil belajar mahasiswa pada mata kuliah Teknologi Fermentasi secara keseluruhan meningkat. Agar Lesson Study dapat berjalan dengan lancar perlu komitmen yang kuat dari seluruh dosen yang terlibat dalam kegiatan Lesson Study baik dosen model maupun para observer.
Pengaruh Jus Buah Jambu Biji Merah (Psidium guajava L) terhadap Gambaran Histopatologik Trakea Mencit (Mus Musculus) Strain Swiss yang Dipaparkan Asap Rokok Febrianti, Novi; Suryati, Rita Yuli
JURNAL BIOEDUKATIKA Vol 2, No 1 (2014)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (610.955 KB) | DOI: 10.26555/bioedukatika.v2i1.4105

Abstract

Jambu biji merah adalah salah satu buah-buahan yang mengandung antioksidan tinggi. Penelitian ini bertujuan untuk mengetahui pengaruh jus buah jambu biji merah terhadap gambaran histopatologik trakea mencit yang dipaparkan asap rokok dan dosis yang paling efektif untuk mengurangi dan mencegah efek yang ditimbulkan oleh paparan asap rokok. Penelitian ini menggunakan 3 perlakuan dosis jus buah jambu biji merah yaitu 0,13 ml/mencit/hari (P1), 0,26 ml/mencit/hari (P2) dan 0,52 ml/mencit/hari (P3) dengan 3 macam kelompok kontrol yaitu kontrol tanpa perlakuan (K), kontrol negatif yang hanya dipaparkan asap rokok (K-) dan kontrol positif menggunakan dosis vitamin C 0,02 ml/mencit/hari (K+). Tiap perlakuan menggunakan 3 ekor mencit. Parameter yang diamati adalah gambaran mikrokopis jaringan epitel trakea. Data hasil penelitian dianalisis secara deskriptif dengan membandingkan jaringan epitel trakea antar kelompok perlakuan. Hasil penelitian menunjukkan bahwa jus buah jambu biji merah berpengaruh terhadap jaringan epitel trakea mencit yang dipaparkan asap rokok. Pemberian jus buah jambu biji merah dapat mengurangi kerusakan epitel trakea mencit akibat paparan asap rokok. Dosis jus buah jambu biji yang efektif untuk mengurangi kerusakan trakea adalah 0,26 ml/mencit/hari atau setara dengan mengkonsumsi 100 gr buah jambu biji bagi manusia setiap hari.
Kandungan Antioksi dan Asam Askorbat pada Jus Buah-Buahan Tropis Febrianti, Novi; Yunianto, Irfan; Dhaniaputri, Risanti
JURNAL BIOEDUKATIKA Vol 3, No 1 (2015)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (628.703 KB) | DOI: 10.26555/bioedukatika.v3i1.4130

Abstract

Tropical fruits are rich in nutrients and phytochemicals that benefit our health. As source of antioxidant, regular consumption of fruits will be useful in avoiding many degenerative diseases particularly caused by free radicals. The good effects of antioxidants vary from repairing tissue damages in respiratory system, excretory system as well as reproductive system. Ascorbic acid is one potent antioxidant that has been recorded for history. Known as Vitamin C, its concentration in fruits has been a primary consideration for people to choose what kind of fruit they are going to consume. This experiment’s result exhibited different levels of ascorbic acid in some topical fruits. Average concentration of ascorbic acid from the highest to lowest was obtained in orange, guava, apple, papaya, tamarind and mango with their contents of 96,8; 49,86; 49,57; 48,4 and 41,06 mg/100g, respectively. This result would be a baseline in setting the best fruit combination to obtain maximum effects of antioxidant.
AKTIVITAS INSEKTISIDAL EKSTRAK ETANOL DAUN KIRINYUH (EUPATORIUM ODORATUM L.) TERHADAP WERENG COKLAT (NILAPARVATA LUGENS STAL.) Febrianti, Novi; Rahayu, Dwi
Prosiding Seminar Biologi Vol 9, No 1 (2012): Seminar Nasional IX Pendidikan Biologi
Publisher : Prodi Pendidikan Biologi FKIP UNS

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Abstract

ABSTRAK   Kirinyuh (Eupatorium odoratum) mengandung senyawa alkaloid, flavonoid, tannin, dan seskuiterpen yang bersifat insektisidal. Penelitian ini bertujuan untuk mengetahui aktivitas insektisidal ekstrak etanol daun kirinyuh terhadap wereng coklat dan nilai LC50-24 jam. Penelitian menggunakan rancangan acak lengkap (RAL) dengan menvariasikan  konsentrasi ekstrak etanol daun kirinyuh, yaitu 0%, 3%, 6%, 9% dan 12%. Data hasil penelitian dianalisis dengan analisis  regresi, probit, dan  Anava yang dilanjutkan BNT 5%. Dari hasil penelitian ini diketahui bahwa ekstrak etanol daun kirinyuh mempunyai aktivitas insektisidal terhadap wereng coklat, semakin tinggi konsentrasi ekstrak etanol daun kirinyuh  maka semakin tinggi pula tingkat kematian wereng coklat. Nilai LC50-24 jam adalah sebesar 14,905%. Berbagai konsentrasi ekstrak etanol yang diberikan memberikan pengaruh yang berbeda terhadap tingkat kematian wereng coklat.   Kata kunci:  aktivitas insektisidal, kirinyuh (Eupatorium odoralum L.), wereng coklat
BIOSINTESIS SELULOSA OLEH ACETOBACTER XYLINUM MENGGUNAKAN LIMBAH CAIR TAHU SEBAGAI MEDIA PERTUMBUHAN DENGAN PENAMBAHAN MOLASE Febrianti, Novi
Prosiding Seminar Biologi Vol 8, No 1 (2011): Seminar Nasional VIII Pendidikan Biologi
Publisher : Prodi Pendidikan Biologi FKIP UNS

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Abstract

ABSTRACT   Cellulose is a biopolymer whose numbers most  abundant in nature and have an important role as various kinds of industrial raw materials. In this study,  liquid waste of soy used as a growth medium  for A. xylinum bacteria to synthesize cellulose with  addition of molasses as carbon source. The aim of this research was to know the effect of different concentrations of molasses on cellulose layer weight and which is the best concentration of molasses that produce the highest weight of cellulose. Three  concentration of molasses were tested, namely 2%, 4% and 6%. Observation on layer cellulose weight produced was performed on day-10 . The study shows that the more concentrations of molasses is given, the more weight of the layer of cellulose, although this weight difference was not significant. 6% molasses concentration produces the most high cellulose weight.   keywords: cellulose , molase, liquid waste of soy, A. xylinum
BIOSINTESIS SELULOSA OLEH Acetobacter xylinum MENGGUNAKAN LIMBAH CAIR TAHU SEBAGAI MEDIA PERTUMBUHAN DENGAN PENAMBAHAN MOLASE Febrianti, Novi
Proceeding Biology Education Conference: Biology, Science, Enviromental, and Learning Vol 8, No 1 (2011): Prosiding Seminar Nasional VIII Biologi
Publisher : Universitas Sebelas Maret

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Abstract

ABSTRACT   Cellulose is a biopolymer whose numbers most  abundant in nature and have an important role as various kinds of industrial raw materials. In this study,  liquid waste of soy used as a growth medium  for A. xylinum bacteria to synthesize cellulose with  addition of molasses as carbon source. The aim of this research was to know the effect of different concentrations of molasses on cellulose layer weight and which is the best concentration of molasses that produce the highest weight of cellulose. Three  concentration of molasses were tested, namely 2%, 4% and 6%. Observation on layer cellulose weight produced was performed on day-10 . The study shows that the more concentrations of molasses is given, the more weight of the layer of cellulose, although this weight difference was not significant. 6% molasses concentration produces the most high cellulose weight.   keywords: cellulose , molase, liquid waste of soy, A. xylinum
Effect of different preparation techniques of red dragon fruit (Hylocereus polyrhizus) extracts on normal human fibroblast viability Novi Febrianti; Triana Hertiani; Sukarti Moeljopawiro; Sofia Mubarika Haryana
Pharmaciana Vol 9, No 2 (2019): Pharmaciana
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (324.081 KB) | DOI: 10.12928/pharmaciana.v9i2.13054

Abstract

Red dragon fruit is one of the popular fruits that have been widely used both for consumption and food coloring. The red dragon fruit peel and flesh contain various antioxidant compounds that can be used as pharmaceutics and nutraceuticals. The objective of this study was to determine the effect of various extract preparations of the peel and the flesh of red dragon fruit on the viability of normal human fibroblasts. Seven conditions of peel and flesh extracts were prepared as follows, i.e. dried peel ethanolic extract, fresh blended peel ethanolic extract, dried flesh, fresh blended flesh ethanolic extract, blended fresh flesh, filtrate of pressed flesh, and pomace of pressed flesh. Each sample preparation was tested for its effect on the viability of normal human fibroblasts using MTT assay. Results showed that dried peel ethanolic extract reduce cell viability. Red dragon fruit flesh extracts caused no significant effect on the fibroblast viability. In conclusion, the fruit flesh extracts are relatively safer to normal cells than the peel extracts. IC50 value of the ethanolic extract of dried peel  was 55.38±3.85 µg/mL, while the IC50 value of various types of flesh extract were more than 500 µg/mL.
Developing psychomotor evaluation instrument of biochemistry practicum for university students of biology education Etika Dyah Puspitasari; Mohamad Joko Susilo; Novi Febrianti
REID (Research and Evaluation in Education) Vol 5, No 1 (2019): June
Publisher : Program Pascasarjana Universitas Negeri Yogyakarta & HEPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (391.006 KB) | DOI: 10.21831/reid.v5i1.22126

Abstract

Practicum is one of the important aspects of the learning of biology. There is no psychomotor evaluation instrument that is valid and reliable. This study is aimed at developing a valid and reliable psychomotor evaluation instrument for biochemistry practicum. The study is developmental research using the 4-D model of ‘define, design, develop, and disseminate’. Instrument validation was carried out through construct validation. The findings show that the developed instrument is characterized by a high level of construct validity although the reliability measure is not very well-estimated. The instrument is constructed of four factors of perception, set, guided response, and mechanism developed into 80 statement items.
Analisis Keterampilan Psikomotorik Mahasiswa Pada Praktikum Biokimia dan Korelasinya dengan Hasil Belajar Kognitif Etika Dyah Puspitasari; Novi Febrianti
Jurnal Pendidikan Biologi Vol 8, No 1 (2018): Jurnal Pendidikan Biologi
Publisher : Magister Pendidikan Biologi, Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jpb.v8i1.11664

Abstract

Biochemistry practice is a basic practicum that must be mastered by biology education students. Skills in biochemistry practicums are the basis used in practicum physiology, genetics, microbiology, and other materials in biology. This study aims to analyze psychomotor skills achieved by students in biochemical practicums and examine the relationship between cognitive learning outcomes and psychomotor learning outcomes of biology education students in biochemical practicums, especially in the experimental material for making solutions and measuring pH. This research is a quantitative descriptive study with a sample of 40 biology education students. Learning outcomes data were analyzed using quantitative and qualitative analysis, and the correlation between psychomotor and cognitive learning outcomes was analyzed using Pearson Correlation analysis at α = 0.01. The results showed that psychomotor skills that were mastered by students in biochemistry practicum (making solutions and pH measurements) included levels 1-4, with an achievement percentage of 89.19% at level perception; 97.30% at the level set; 51.62% at the guided response level and 72.97% at the mechanism level, with psychomotor learning outcomes averaging 58 (sufficient category). The cognitive value of students in the experimental for making solutions and pH measurements was 63.32 (good category). There is a positive correlation between psychomotor and cognitive learning outcomes of students in biochemistry practicum (r = 0.67) with a strong correlation category.
Co-Authors Angraini Ahza Sazwita Raja Arief Abdillah Nurusman Dhaniaputri, Risanti Dwi Nugroho Dwi Rahayu Etika Dyah Puspitasari Hani Irawati Haris Setiawan Indro Prastowo Irawati, Hani Irfan Yunianto Ma'rifah, Destri Ratna Maya Pratiwi Mohamad Joko Susilo Muhammad Joko Susilo Nani Aprilia Nurul Abidin Rahmat Krestianto Risanti Dhaniaputri Rita Yuli Suryati Ryan Ardiansyah Sari Kartika Sharfina Mutia Syarifah Sofia Mubarika Haryana Sukarti Moeljopawiro Suryati, Rita Yuli Susilo, Muhammad Joko Tamara Ismi Claudya Triana Hertiani Wahdaniar Yahya Hanafi