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All Journal Jurnal Pendidikan dan Pembelajaran Khatulistiwa (JPPK) agriTECH JITIPARI (Jurnal Ilmiah Teknologi dan Industri Pangan UNISRI) BioEksakta : Jurnal Ilmiah Biologi Unsoed Marketing and Business Strategy
Saputra, Wahyu Dwi
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Immunology & microbiology Languange, Linguistic, Communication & Media Mathematics Veterinary Other

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PENERAPAN MODEL PROBLEM BASED LEARNING PADA MATERI PROGRAM LINEAR KELAS XI MAN 3 PONTIANAK Saputra, Wahyu Dwi; Yani, Ahmad; Bistari, Bistari
Jurnal Pendidikan dan Pembelajaran Khatulistiwa Vol 7, No 11 (2018): Nopember 2018
Publisher : Jurnal Pendidikan dan Pembelajaran Khatulistiwa

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

AbstractThis research aims to know and describe the teacher’s class management, student’s learning activities, student’s outcome in the implementation and student respond of Problem Based Learning model in the linear programming topic at class XI IPA MAN 3 Pontianak. The research method is quantitative method. The reseach subject is students in class XI IPA. Based on the data analysis that review four aspects, the result are: (1) the teacher’s class management categorized very good with average score 3,505; (2) student’s learning activities categorized active with average score 74,53%; (3) student’s outcome is not reaced classical completenes with only 15% of student can achieve the minimum completenes criteria; (4) studen’s respond categorized positive. Because only three out of four aspects that achieve, the conclusion of this research is the implementation of Problem Based Learning model less effective to apply in the linear programming topic at class XI IPA MAN 3 Pontianak. Keywords: Problem Based Learning model, effectiveness, linear programming topic
Germination Changes The Chemical Composition and Improves Antioxidant Activity of Indonesian Local Brown Rice var Mentikwangi: Germinasi Merubah Komposisi Kimia dan Meningkatkan Aktivitas Antioksidan pada Beras Pecah Kulit Lokal var Mentikwangi Saputra, Wahyu Dwi; Saputra, Adrian Dwi; Triwitono, Priyanto
JITIPARI Vol 9 No 2 (2024): JITIPARI
Publisher : Universitas Slamet Riyadi Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33061/jitipari.v9i2.10901

Abstract

Previously, germination was reported in many studies that could improve the nutritional status and bioactive compounds in brown rice. However, the change of those functional properties was randomly different in diverse varieties. This study aimed to evaluate the change in chemical composition and functional properties of germinated brown rice from the Mentikwangi variety, one of the local paddy rice in Indonesia. Brown rice was germinated using the soaked and aeration method for 48 h. After that, the proximate compositions were analyzed including the change of total phenolic compounds and radical scavenging activity. We observed that germination in Mentikwangi brown rice significantly increased the crude protein content, but reduced the lipid and total carbohydrate contents. Moreover, the antioxidant activity was improved in germinated Mentikwangi brown rice sample due to the improvement of total phenolic compounds. These results affirm the previous studies which concluded that germination attenuated the functional properties of brown rice, so that has the potential to be developed as a future functional food.
Pengaruh Jenis dan Konsentrasi Bahan Tambahan Terhadap Pertumbuhan Miselium Jamur Paha Ayam (Coprinuscomatus) Saputra, Wahyu Dwi; Ratnaningtyas, Nuniek Ina; Mumpuni, Aris
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 2 No 2 (2020): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.bioe.2020.2.2.3091

Abstract

Abstrak Coprinus comatus merupakan salah satu jamur pangan yang potensial untuk dibudidayakan secara komersial. Jamur C. comatus termasuk ke dalam jamur edible dan medicinal. Tubuh buah C. comatus mengandung antioksidan dan beberapa asam amino esensial. Jamur C. comatus tumbuh optimal pada medium yang mengandung suplemen. penambahan suplemen pada medium tanam jamur bertujuan untuk memberikan nutrisi yang dibutuhkan jamur. Suplemen ditambahkan dengan jumlah tertentu. Penelitian ini bertujuan untuk mengetahui kombinasi jenis suplemen dan konsentrasi suplemen yang optimal untuk pertumbuhan jamur C. comatus. Penelitian dilakukan dengan metode eksperimental menggunakan Rancangan Acak Lengkap pola Faktorial dengan dua faktor uji yaitu jenis dan konsentrasi suplemen. Suplemen yangdigunakan yaitu dedak padi (bekatul), dedak jagung (ampok), dedak gandum (polar), dan tepung gandum. Konsentrasi suplemen yang digunakan yaitu 0%, 5%, 10%, 15%, dan 20%. Hasil yang didapat dari penelitian ini yaitu penambahan suplemen dengan Konsentrasi berbeda berpengaruh nyata terhadap pertumbuhan miselium jamur C. comatus. Suplemen yangbaik untuk menumbuhkan jamur C. comatus adalah ampok jagung dan dedak padi. Konsentrasi yang optimal untuk pertumbuhan miselium jamur C. comatus adalah dedak jagung dengan konsentrasi 5% dan dedak padidengan konsentrasi 15%. KataKunci : Coprinus comatus, kecepatan pertumbuhan miselium, penambahan suplemen
How Does Word of Mouth Mediate the Relationship between Lifestyle and Product Quality to Customer Loyalty? Saputra, Wahyu Dwi; Santosa, Perdana Wahyu
Marketing and Business Strategy Vol. 2 No. 1 (2024): NOVEMBER 2024
Publisher : SAN Scientific

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58777/mbs.v2i1.241

Abstract

This study examines the influence of lifestyle and product quality on customer loyalty, with word of mouth (WoM) as a mediating factor for Erigo products. The research focuses on YARSI University students (Batch 2016-2019) who have purchased Erigo products. It contributes to consumer behavior and marketing literature by highlighting WoM's role in fostering loyalty to local fashion brands. The sample consists of 100 respondents who purchased Erigo products 1-2 times, 3-4 times, or more than 4 times, selected through purposive sampling with a non-probability method. Data were collected via questionnaires and analyzed using Partial Least Square Structural Equation Modeling (PLS-SEM). Findings reveal that lifestyle and product quality significantly influence WoM. Lifestyle directly impacts customer loyalty, while product quality does not. WoM strongly affects customer loyalty and mediates the relationship between both lifestyle and product quality with loyalty. These results emphasize WoM's critical role in enhancing loyalty, reinforcing the importance of targeting lifestyle alignment and product quality in Erigo’s marketing strategies. By leveraging WoM effectively, Erigo can strengthen customer retention and advocacy among its student consumer base.
Physicochemical Characteristics and Antidiabetic Potential In Vitro of Analog Rice Based on White Greater Yam (Dioscorea alata) and Yellow Pumpkin (Cucurbita maxima) Imama, Darus Dina; Triwitono, Priyanto; Saputra, Wahyu Dwi
agriTECH Vol 45, No 2 (2025)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/agritech.97284

Abstract

Type 2 Diabetes Mellitus (T2DM) is a metabolic disease characterized by the presence of increased blood sugar due to insulin resistance and β-cell dysfunction maintaining the body homeostasis by lowering blood sugar levels. People with T2DM are advised to avoid consuming foods that can trigger an increase in blood sugar levels. However, daily consumption of Indonesians still depends on ordinary rice, which has a high glycemic index and can increase blood sugar levels. This shows the need to produce substitute such as analog rice, which is safe to consume by people with T2DM. Analog rice is artificial product that uses raw materials from grains or tubers. Therefore, this research aimed to produce high-antioxidant analog rice by using white greater yam and yellow pumpkin as the main ingredients. The results showed that increasing the concentration of yellow pumpkin caused a rise in physical properties such as water absorption and b value, which was the yellow color appearing in analog rice. Chemical properties such as water content, ash, and protein were increasing but starch, carbohydrates, amylose, and amylopectin levels decreased. Total phenolics, DPPH, and ABTS antioxidants, the percentage of inhibition activity of α-amylase enzyme, and descriptive sensory tests including appearance, aroma, texture, and flavor also showed an increase. The best formula was obtained in P1 treatment comprising 85% white greater yam and 15% yellow pumpkin. Specifically, P1 showed % α-amylase inhibition activity of 42%, DPPH antioxidant activity 82.39%, ABTS 86.47%, and a favorability test value of 4. This value was considered neutral, showing the potential to be well-received by panelists.
Characterization of High Protein and Instant Cereal Fiber Drink Enriched with Probiotic Milk Powder Tanuwijaya, Shania Angeline; Fibri, Dwi Larasatie Nur; Rahayu, Endang Sutriswati; Yanti, Rini; Saputra, Wahyu Dwi
agriTECH Vol 45, No 3 (2025)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/agritech.90659

Abstract

An alternate healthy snack for school-age children can be prepared by adding sorghum and tempeh flour, which are sources of protein and fiber, to instant cereal drinks. Probiotic-enriched snacks are well-known, and several clinical studies have shown significant benefits to humans. Therefore, this study aimed to assess the effects of various ratios of sorghum and tempeh flour (5:1, 2:1, and 1:1) on physicochemical and sensory characteristics of the flakes. The viability of Lactiplantibacillus plantarum subsp. plantarum Dad-13 in an instant cereal beverage was examined for 56 days at three distinct storage temperature, i.e 20, 30, and 37 °C. The 2:1 sorghum: tempeh flour ratio formulation was the most widely accepted. According to chemical analyses, all probiotic instant cereal drink formulations have the potential to be sources of fiber (6.4–10.6 g/100 g) and proteins (14.5–16.3 g/100 g). Furthermore, the probiotic instant cereal drink contains more fiber and protein than a commercial product. This product has a minimum viable count of probiotic bacteria > 6.0 log CFU/g, which is substantial enough to have positive health effects on Indonesian school-age children.
Co-Authors ahmad yani Aris Mumpuni Bistari Endang Sutriswati Rahayu Fibri, Dwi Larasatie Nur Imama, Darus Dina Nuniek Ina Ratnaningtyas Perdana Wahyu Santosa Rini Yanti, Rini Saputra, Adrian Dwi Tanuwijaya, Shania Angeline Triwitono, Priyanto