Comparative study between Federer and Gomez method for number of replication in complete randomized design using simulation: study of Areca Palm (<i>Areca catechu</i>) as organic waste for producing handicraft paper

Ihwah, Azimmatul; Deoranto, Panji; Wijana, Susinggih; Dewi, Ika Atsari

doi:10.1088/1755-1315/131/1/012049

Cited by 16 publications

(14 citation statements)

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“…Perlakuan terdiri atas 4 taraf perbandingan persentase TT dengan TDK yaitu 100:0 (kontrol), 95:5, 90:10, 85:15. Setiap perlakuan diulang 5 kali [7] berdasarkan rumus Federer yaitu t(r-1)>15, sehingga total terdapat 20 unit sampel. Penelitian dilakukan secara bertahap yaitu 1) Uji pendahuluan untuk menentukan standar resep, 2) Pembuatan mie basah kelor sesuai rancangan penelitian, 3) Analisis mutu gizi (protein, lemak, air, abu, karbohidrat, serat kasar, kalsium); mutu fisik (daya putus); dan mutu organoleptik.…”

Section: Metode Penelitian Rancangan Penelitianunclassified

Profil Mutu Gizi, Fisik, dan Organoleptik Mie Basah dengan Tepung Daun Kelor (Moringa Oleifera)

Rahmi¹,

Wani²,

Kusuma³

et al. 2019

IJHN

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Mie adalah produk makanan yang digemari oleh masyarakat. Namun, mie memiliki kandungan protein, serat, dan kalsium yang rendah. Peningkatan nilai gizi pada mie dapat dilakukan dengan menggunakan tepung daun kelor (TDK). Namun, tepung ini rasanya pahit. Tujuan dari penelitian ini adalah mengetahui profil mutu gizi (protein, lemak, air, abu, karbohidrat, serat kasar, kalsium), fisik (daya putus), dan organoleptik (tingkat kesukaan panelis) dari mie basah dengan TDK. Pada penelitian ini perlakuan adalah perbandingan antara tepung terigu (TT) dan TDK, yaitu 100:0 (kontrol), 95:5, 90:10, dan 85:15. Setiap perlakuan diulang 5 kali. Protein, lemak, air, abu, dan karbohidrat dianalisis proksimat, serat kasar dengan metode analisis asam basa, dan kalsium dengan metode Atomic Absorption Spectrofotometer (AAS). Daya putus mie diukur dengan menggunakan Tensile Strength Instrument. Mutu organoleptik dinilai oleh 20 orang panelis agak terlatih. Hasil penelitian menunjukkan bahwa penggunaan TDK secara signifikan memberikan perbedaan pada semua aspek mutu yang diukur (p<0,05), kecuali kandungan air (p>0,05). Kandungan kalsium pada mie basah kelor meningkat minimal 3,5 x kontrol. Daya putus dan tingkat kesukaan panelis terhadap mie menurun drastis sejak peningkatan konsentrasi dari TDK sebanyak 10%. Mie yang paling disukai panelis adalah mie basah dengan TT:TDK=95:5%. Kesimpulan, TDK hanya dapat disubstitusikan pada mie basah maksimal 5%.

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Section: Metode Penelitian Rancangan Penelitianunclassified

Profil Mutu Gizi, Fisik, dan Organoleptik Mie Basah dengan Tepung Daun Kelor (Moringa Oleifera)

Rahmi¹,

Wani²,

Kusuma³

et al. 2019

IJHN

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“…According to the results of Hongu et al (2014), consumption of rice bran significantly reduced LDL and total cholesterol. It also proved that a balanced diet supplemented with rice bran consumption for 8 weeks could reduce body weight around 4.7 kg in overweight and obesity adults 15 . Justo et al (2012) also proved that rice bran was able to reduce blood pressure, triglycerides, cholesterol, and blood glucose levels by increasing insulin sensitivity in obese rats 16 .…”

Section: Resultsmentioning

confidence: 92%

“…Ethical consideration was approved by the Faculty of Medicine, Universitas Indonesia, Indonesia (Number: 514/UN2.F1/ETIK/2016). Based on Federer's formula 15 for sample size determination in animal studies, a total of 24 animal samples, in the form of the brain of Sprague-Dawley strain male rats aged 6-8 weeks with a weight of 150-250 g, were divided into six groups, including the normal control group (C1) without intervention; negative control group (C2) induced CCl 4 0.55 mg/kg; intervention group 1 (I1) given rice bran 150 mg/kg; intervention group 2 (I2) given rice bran 150 mg/kg and CCl 4 0.55 mg/kg; intervention group 3 (I3) given rice bran 300 mg/kg and intervention group 4 (I4) given rice bran 300 mg/kg and CCl 4 0.55 mg/kg.…”

Section: Methodsmentioning

confidence: 99%

Untitled

2021

IJPSR

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IPB-3S Strain Oryza sativa bran, a high-antioxidant food, was expected to protect the brain as a susceptible organ from oxidative damage. This study was conducted to analyze the effect of rice bran extract on malondialdehyde (MDA) and glutathione peroxidase (GSH) levels in the brain induced by carbon tetrachloride (CCl 4 ). A total of 24 Sprague-Dawley male rats was divided into 6 groups, including normal control (C1); negative control (C2); 150 mg/kg rice bran extract (I1); 150 mg/kg rice bran extract + CCl 4 (I2); 300 mg/kg rice bran extract (I3); and 300 mg/kg rice bran extract + CCl 4 (I4). The MDA levels were measured by Wills method, while GSH levels were measured by the Ellman method. The administration of low-dose (150 mg/kg) and high-dose (300 mg/kg) rice bran extracts significantly lowered MDA levels compared to control groups, both in the groups with and without the induction of CCl 4 (p <0.05). Moreover, the administration of low-dose (150 mg/kg) also significantly increased GSH level (p <0.05), contrary to the groups administered by high-dose (300 mg/kg) rice bran extracts, which relatively reduced GSH level. In conclusion, rice bran extract has been proven to increase antioxidants in rat brain tissue by reducing MDA levels and increasing GSH levels. INTRODUCTION:In recent years, degenerative diseases in the world are increasing, including in Indonesia. Basic health research (Riskesdas) data in 2013 showed that the prevalence of degenerative diseases in Indonesia was high, including diabetes (2.1%), hypertension (9.5%), cancer (0.14%), coronary heart disease (1.5%), heart failure (0.3 %), and strokes (1.2%) 1 .

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“…The experimental group is class K (40 people) and the control group is class A (38 people). The number of participants, according to Federer (In Ihwah et al 2018), follows the following formula (t-1) (n-1) > 15 t = number of treatments, n = number of participants.…”

Section: Participantsmentioning

confidence: 99%

Using of Spatial Problem Based Learning (SPBL) model in geography education for developing critical thinking skills

Silviarza

Sumarmi

Handoyo

2020

Journal for the Education of Gifted Young Scientists

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Geography education in the 21st century will require students to think critically to prepare themselves for the dynamic changes in the world in the future. It discusses the ability to think critically in orienting, analyzing, and solving problems with a spatial perspective is one of the fundamental abilities that must be supported by geography students. The spatial problem-based learning model (SPBL) has been developed by Silviariza & Handoyo (2020). This study aims to explore the spatial problem-based learning model of students' critical thinking skills. This study uses a quasi-experimental design with control and experimental groups. The study was conducted at the Department of Geography, State University of Malang. Participants in this study were students of Geography Education Study Program semester 3 with an average age range of 19 years. The control class offers A with 38 students consisting of 16 boys and 22 girls. While the experimental class offered K with 40 students consisting of 12 boys and 28 girls. Data collection is carried out after implementation with the SPBL model. Data obtained from the pretest and posttest activities in the control class and experiment with question sheets that were questioned on the matter of modification expertise from Ennis (2011). Furthermore, an independent sample t-test was conducted to analyze the data using SPSS for Windows version 23. The conclusion of the analysis shows a positive model of spatial problem based learning (SPBL) in Geography education to develop critical thinking skills. Thus, the results of this study can be used as valid data which proves that the Spatial Problem Based Learning Model as one of the learning models in Geography education and can be used by Geography teachers to improve students' critical thinking skills.

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Comparative study between Federer and Gomez method for number of replication in complete randomized design using simulation: study of Areca Palm (Areca catechu) as organic waste for producing handicraft paper

Cited by 16 publications

References 1 publication

Profil Mutu Gizi, Fisik, dan Organoleptik Mie Basah dengan Tepung Daun Kelor (Moringa Oleifera)

Profil Mutu Gizi, Fisik, dan Organoleptik Mie Basah dengan Tepung Daun Kelor (Moringa Oleifera)

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Using of Spatial Problem Based Learning (SPBL) model in geography education for developing critical thinking skills

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