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Desy Kurniawati
Universitas Negeri Padang
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Training on Diversification of Banana and Taro Food into Healthy Food Products with Economical Value in Bungus Barat Village, Padang City Desy Kurniawati
Pelita Eksakta Vol 4 No 1 (2021): Pelita Eksakta Vol. 4 No. 1
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol4-iss1/141

Abstract

In West Bungus Village, there are abundant bananas and taro crops. So far, bananas and taro have not been processed into nutritious healthy food products with economic value. This condition becomes a problem that needs to be found as a solution. if bananas and taro can be processed further, the selling value will be higher. From the situation analysis, the people of West Bungus Village need to be equipped with the knowledge on how to process bananas and taro into healthy nutritious foods that have economic value. Banana and taro processing techniques can be applied through education and training on the application of Applied Chemistry. This activity has had a positive impact, which has increased the knowledge and skills of the people of West Bungus Village in processing bananas and taro into alternative food sources and nutritious foods that have marketable economic value.
Utilization of Cassava Rich in Insoluble Fiber as an Alternative Prebiotic to Increase Family Immunity in Nagari Katapiang, Batang Anai District, Padang Pariaman Regency Melindra Mulia; Umar Kalmar Nizar; Desy Kurniawati; Fauzana Gazali
Pelita Eksakta Vol 4 No 2 (2021): Pelita Eksakta Vol. 4 No. 2
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol4-iss2/157

Abstract

Cassava is widely available, even abundant in the Katapiang Urban Village, Batang Anai Sub-district. Unfortunately, society does not know the benefits of cassava as a prebiotic that is beneficial for family health. This community service activity aims to increase knowledge about prebiotics from cassava and how to process them so that it is beneficial to society. In this way, the health of the family can be maintained. The activity was carried out at the Masjid Istiqomah, Katapiang Urban Village, Batang Anai Sub-district, Padang Pariaman District, involving 18 targets. The activities implementation is divided into two stages, namely guided and independent activities. In the guided activities, interactive counseling and practical methods are used. Meanwhile, in independent activities, the targets made spice drinks in groups. The results of the activity showed targets’ knowledge about prebiotics and how to process cassava had increased so that they can get optimal benefits for health. The target is also interested in producing and consuming, their own processed cassava that has been made.
PKM Utilization of Natural Ingredients, Spices and Coconut as Family Drinks in an Effort to Increase Body Immune During Covid Conditions in Bungus Teluk Kabung District, Bungus Barat Village, Padang City Suryelita Suryelita; Syamsi Aini; Desy Kurniawati; Indang Dewata; Sri Benti Etika; Melindra Mulia; Trisna Kumala Sari
Pelita Eksakta Vol 5 No 1 (2022): Pelita Eksakta Vol. 5 No. 1
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol5-iss1/163

Abstract

During the pandemic, people's activities are limited outside the home. However, this condition has an impact on their income economy. People can return to their activities to meet their needs by implementing a new normal life through health protocols. However, information and knowledge on how to maintain body immunity and the implementation of a new normal life are still limited. Therefore, it is necessary to disseminate information about the importance of body immunity during this pandemic. One of the areas affected by this pandemic is Bungus Barat Village, Bungus Teluk Kabung District. To answer the problems that arise in this area, it is necessary to carry out service activities that aim to provide information to the community, especially mothers who are the spearheads of families who are members of the association of PKK women in West Bungus Village on how to increase and maintain immunity during the pandemic. This increase in immunity includes lifestyle and diet that must be followed in the new normal life. Participants in this service activity include representatives of PKK women in West Bungus Village. The activity is in the form of implementation which is divided into two stages, namely guided activities, and independent activities. In the guided activities, interactive and practical counseling methods are used. Meanwhile, in independent activities, the target is to carry out the practice of making spice drinks and VCO in groups again. The results of the activity showed an increase in target knowledge about kitchen spices and coconut into VCO and nutritious spice drinks. The target community, namely PKK women, is also interested in consuming and producing their own VCO and spice drinks that have been made. In addition, from this activity, the community gained a good understanding of what to do during this pandemic, not only in complying with health protocols but also in regulating lifestyle and eating patterns.
The Development of an Integrated E-Module of Scientific Literacy and Video Demonstration Using a Problem-Based Learning Model for High School Students on Acids and Bases Yani Puspita Yani; Hardeli Hardeli; Budhi Oktavia; Desy Kurniawati
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 2 (2022): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i2.1306

Abstract

This study aims to develop e-module teaching materials based on problem-based learning integrated scientific literacy and demonstration videos on acid and base materials that are useful for assisting the learning process of students. This research belongs to Educational Design Research (EDR) with the Plomp development model. The research tools used are interview forms, validity, and practicality questionnaires. The electronic module is verified by six verifiers, Including three lecturers and chemistry teachers. The data shows that problem-based learning e-module teaching materials and equipped with scientific literacy along with demonstration videos are needed. The data were analyzed using the Content Validity Ratio (CVR), the Aikens'V formula, and the percentage of practicality. Analysis of the validity questionnaire data showed an average CVR score of 1 (for content validity) and Aikens' V average score of 0.88 (for construct validity). Analysis of the practicality questionnaire data showed an average score of 90% and 89% (for small group and field test practicalities). The data analysis shows that the e-module has a high level of validity and practicality. Therefore, it can be concluded that the developed electronic module teaching materials based on problem learning integrated scientific literacy and demonstration videos are valid and practical.
Development of REACT-Based E-Module to Improve Students Scientific Literacy Ability in Buffer Solution Aroma Karmila; Desy Kurniawati; Hardeli Hardeli; Umar Kalmar Nizar
Jurnal Pendidikan MIPA Vol 23, No 2 (2022): Jurnal Pendidikan MIPA
Publisher : University of Lampung

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

Abstract

Abstract The buffer solution e-module based on the REACT strategy (Relating, Experiencing, Applying, Collaborating, Transferring) has been developed and analysed for its validity and practicality levels to assist the learning process of students to train students' scientific literacy skills. This research belongs to the type of EDR (Educational Design). Research) with the Plomp model. The research tools used were interview forms, validity questionnaires, and practicality. This e-module has been verified by six expert reviews, and 9 students became research subjects in this development research. Data were analysed using Aikens'V formula, and practicality percentage. Analysis of the validity of the questionnaire data showed an Aikens' V average score of 0.89 (for construct validity). Analysis of the practicality questionnaire data showed an average score of 83% and 83% (for small groups and field practice tests). Data analysis shows that the e-module has a high level of validity and practicality. Therefore, it can be concluded that the buffer solution e-module teaching material based on the REACT strategy is valid and practical so that it is feasible to use it in learning to train students' scientific literacy skills. Keywords e-module, REACT strategy, buffer solution, scientific literacy Abstrak E-modul larutan penyangga berbasis strategi REACT (Relating, Experiencing, Applying, Collaborating, Transfering) telah dikembangkan dan dianalisis tingkat validitasnya serta tingkat praktikalitas untuk membantu proses pembelajaran peserta didik agar melatih kemampuan literasi sains peserta didik. Penelitian ini tergolong jenis EDR (Educational Design). Research) dengan model Plomp. Alat penelitian yang digunakan adalah formulir wawancara, angket validitas, dan kepraktisan. E-modul ini telah diverifikasi oleh enam expert review, dan 9 peserta didik menjadi subjek penelitian dalam penelitian pengembangan ini. Data dianalisis menggunakan rumus Aikens'V dan persentase kepraktisan. Analisis validitas data angket menunjukkan skor rata-rata Aikens' V 0,89 (untuk validitas konstruk). Analisis data angket kepraktisan menunjukkan skor rata-rata 83% dan 83% (untuk kelompok kecil dan uji praktik lapangan). Analisis data menunjukkan bahwa e-modul memiliki tingkat validitas dan kepraktisan yang tinggi. Oleh karena itu, dapat disimpulkan bahwa bahan ajar E-modul larutan penyangga berbasis strategi REACT adalah valid dan praktis sehingga sudah layak digunakan dalam pembelajaran untuk melatih kemampuan literasi sains peserta didik. Kata kunci: e-modul, strategi REACT, larutan penyangga, literasi sains.DOI: http://dx.doi.org/10.23960/jpmipa/v23i2.pp866-879
Adsorpsi Zat Warna Rhodamine B Dengan Karbon Aktif Kulit Durian sebagai Adsorben Azhma Ulya; Edi Nasra; Ali Amran; Desy Kurniawati
Jurnal Periodic Jurusan Kimia UNP Vol 11, No 2 (2022): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1193.301 KB) | DOI: 10.24036/p.v11i2.113371

Abstract

Rhodamine, B colorant is one of the dyes present in the waste coming from the textile/dyeing industry. Rhodamin B dyes found in waters can cause damage to ecosystems both animals and plants, so a method is needed to overcome the impact of pollution by Rhodamin B waste. One of the most efficient methods is the adsorption method using activated carbon from Durian peels. Adsorption,process is done by using a variation,of pH (2, 3, 4, 5 and 6), and variation of stirring speed (50, 100, 150, 200, 250 rpm). The results showed the absorption capacity at optimum conditions for the absorption of Rhodamine B at pH 4 and stirring speed at 200 rpm with absorption capacity of 24,643 mg/g with absorption percentage 96,0292%.
Development of Guided Discovery-Based e-Module on Colligative Properties to Improve Higher Order Thinking Skills of High School Students Nofrianto Nofrianto; Latisma Latisma; Desy Kurniawati; Ananda Putra
Jurnal Pendidikan MIPA Vol 23, No 3 (2022): Jurnal Pendidikan MIPA
Publisher : University of Lampung

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

Abstract

Abstract The current condition of the Covid-19 pandemic is very influential on the learning process in schools so that a teaching material is needed that can increase the activity of students. This study aims to develop an e-module of colligative properties of solutions based on Guided Discovery Learning to improve Higher Order Thinking Skills (HOTS), as well as determine the level of validity, practicality and effectiveness of the developed e-module. This research and development uses the Plomp model which consists of 3 stages. The assessment instruments used are observation sheets, questionnaires, and learning outcomes tests. The e-Module was validated by six expert validators and tested on six students and 36 students at SMAN 14 Padang. The validity results of the e-module obtained an average value of Aiken's V of 0.84 with a very valid category. The results of e-module practicality by teachers and students obtained an average score of 0.90 and 0.88 with a very practical category. The results of the e-module learning effectiveness test obtained an average N-gain value of 0.691 with a moderate category Keywords e-module, guided discovery learning, higher order thinking skills, Plomp development model, colligative properties of solutions. Abstrak Kondisi pandemi covid-19 saat ini sangat berpengaruh pada proses pembelajaran di sekolah sehingga dibutuhkan suatu bahan ajar yang dapat meningkatkan keaktifan peserta didik. Penelitian ini bertujuan untuk mengembangkan e-modul sifat koligatif larutan berbasis Guided Discovery Learning untuk meningkatkan Higher Order Thinking Skills (HOTS), serta menentukan tingkat kevalidan, kepraktisan dan keefektifan e-modul yang dikembangkan. Penelitian dan pengembangan ini menggunakan model Plomp yang terdiri dari 3 tahap. Instrumen penilaian yang digunakan yaitu lembar observasi, angket, dan tes hasil belajar. e-Modul divalidasi oleh enam orang validator ahli dan diujicobakan kepada enam orang peserta didik serta 36 orang peserta didik di SMAN 14 Padang. Hasil validitas e-modul diperoleh nilai rata-rata Aiken’s V sebesar 0.84 dengan kategori sangat valid. Hasil Praktikalitas e-modul oleh guru dan peserta didik diperoleh nilai rata-rata sebesar 0.90 dan 0,88 dengan kategori sangat praktis. Hasil uji efektifitas hasil belajar e-modul diperoleh nilai rata-rata N-gain sebesar 0,691 dengan kategori sedang. Kata kunci: e-modul, guided discovery learning, higher order thinking skills, model pengembangan Plomp, sifat koligatif larutan.DOI: http://dx.doi.org/10.23960/jpmipa/v23i3.pp1038-1047
Analisis Proksimat Karbon Aktif Kulit Langsat Annisa Nabila Rahma; Desy Kurniawati
Jurnal Periodic Jurusan Kimia UNP Vol 11, No 3 (2022): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/p.v11i3.116189

Abstract

Activated carbon is made from various raw materials, one of which is langsat leather. One of the uses of langsat peel activated carbon is as an adsorbent. The langsat peel activated carbon is made by carbonization process at 400 °C in a furnace. Activated carbon that has been carbonized will be activated with 0.1 M HNO3 for 2 hours. Proximate analysis which includes water content, ash content, volatile matter content, bonding carbon content and iodine uptake. Overall, the proximate analysis of activated carbon from langsat peel has a value that meets the requirements of SNI No. 06-3730-1995. Keywords — langsat peels, activated carbon, activation
Adsorpsi Ion Logam Cd2+ dengan Menggunakan Cangkang Telur Ayam Ras Nova Fitriani; Desy Kurniawati
Jurnal Periodic Jurusan Kimia UNP Vol 11, No 3 (2022): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/p.v11i3.116127

Abstract

The growing industrial growth has resulted in more and more liquid waste containing heavy metals. Therefore we need a way to reduce these heavy metals. One way is adsorption using eggshells. The purpose of this study was to determine the optimum conditions for the adsorption of Cd2+ metal ions on the effect of variations in pH and stirring speed and to determine the adsorption capacity of eggshells for Cd2+ metal ions. This study used the batch method with variations in pH and stirring speed. The optimum conditions obtained from each variation were at pH 4, and stirring speed at 250 rpm. The adsorption capacity at the variation of pH was 2,3875 mg/g at 42,18% and adsorption capacity at variation in stirring speed was 3,3 mg/g at 24,01%.
Optimasi Adsorpsi Ion Logam Cu2+ dengan Menggunakan Cangkang Telur Ayam Ras Nesya Febi Utami; Edi Nasra; Desy Kurniawati; Umar Kalmar Nizar
Jurnal Periodic Jurusan Kimia UNP Vol 11, No 3 (2022): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/p.v11i3.115915

Abstract

adsorption is a method of waste treatment that has the potential to remove toxic heavy metals. One of the factors that influence the occurrence of the adsorption process is the presence of a biological material called a biosorbent. The adsorption method is a method of absorbing heavy metal contamination in liquid waste that is very efficient and effective, as well as easy and cheap economically because of the use of biomaterials that are very cheap and can be regenerated. Chicken egg shell contains Calcium Carbonate (CaCO3) of 98.41% and has natural pores of 10,000 to 20,000 so it is estimated that it can absorb solutes. Based on the known mineral composition, chicken egg shells are composed of CaCO3 (98.41%), Ca3(PO4)2 (0.75%), and MgCO3 (0.84%). So it can be seen that chicken egg shells have a high calcium carbonate content, where calcium carbonate is a polar adsorbent. The optimum conditions for each variable in contacting broiler egg shells that have been activated with Cu2+ metal ions are optimum at pH 4, concentration of 250 ppm.
Co-Authors Afdina Afdina Ali Amran Ananda Putra Annisa Nabila Rahma Aroma Karmila Azhma Ulya Berliana Salsabila Budhi Oktavia Delfitri Delfitri Deski Beri Deva Indriyani Dewi Rika Aryani Dwi Hartati Edi Nasra Elinda Fithriana Fadhilatu Zikra Fadilla Yuri Merti Fauzan Aulia Akbar Fauzana Gazali Hardeli Hardeli Hardeli Hary Sanjaya Hesty Parbuntari Indang Dewata Latisma Latisma Melindra Mulia Melindra Mulia Mufi Nasda Nesya Febi Utami Niza Lian Pernadi Nofrianto Nofrianto Nova Fitriani Nur Hafni Hasibuan Rahmi Eka Witri Riga Riga Romy Dwipa Yamesa Away Sri Benti Etika Suryelita . Syamsi Aini Trisna Kumala Sari Umar Kalmar Nizar Yani Puspita Yani Yeni, Isra Yerimadesi