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Pengaruh Derajat Keasaman (pH) Media Tanam dan Waktu Panen pada Fortifikasi Selenium Jamur Tiram Putih (Pleurotus ostreatus) Irma Kartika Kusumaningrum; Neena Zakia; Cyntia Nilasari
JC-T (Journal Cis-Trans): Jurnal Kimia dan Terapannya Vol 1, No 1 (2017)
Publisher : State University of Malang or Universitas Negeri Malang (UM)

Jamur tiram putih (Pleurotus ostreatus) merupakan bahan pangan yang sangat digemari masyarakat. Selenium adalah salah satu mikronutrien essensial yang masih rendah pemenuhannya. Penelitian ini bertujuan untuk menganalisa beberapa faktorr yang berpengaruh dalam fortifikasi selenium pada jamur tiram putih. Jamur tiram putih merupakan tanaman saprofit yang menyerap bahan makanan dari media tanam untuk pertumbuhannya, karena itu masa pertumbuhan dan kandungan badan buahnya dipengaruhi oleh komposisi dan keasaman (pH) media tanam. Makalah ini akan memaparkan tentang pengaruh keasaman (pH) dan waktu panen terhadap kandungan selenium badan buah jamur tiram. Dari hasil penelitian diperoleh kesimpulan bahwa, pertumbuhan miselium jamur paling cepat terjadi pada jamur tiram yang ditanam pada media tanam pH 8. Kadar selenium pada badan buah jamur dipengaruhi oleh lama pertumbuhan miselium jamurnya, jamur yang ditanam pada media dengan pH 6 memiliki kadar selenium yang paling tinggi, serta terdapat perbedaan yang signifikan antara kadar selenium badan buah jamur yang dikumpulkan dari waktu panen pertama dan waktu panen kedua. White oyster mushroom (Pleurotus ostreatus) is a very popular food. Selenium is one of the essential micronutrients for human. The intake of selenium is low. The aim of this research is to analyze some factors that affect to selenium fortification on white oyster mushrooms. White oyster mushrooms are saprophytic plants that absorb their food from their growing media, so the growth periode and their fruit body content is influenced by the composition and the acidity (pH) of their growing media. This paper describes about the effect of acidity (pH) and the harvesting time on the selenium content of oyster mushroom. From the results, we concluded that the most rapid growth of mycelium occurred on the oyster mushroom that grown on growing media with pH 8. The selenium content of mushroom fruit body are influenced by their mycelia growing period, the oyster mushroom that grown on growing media with pH 6 had the highest selenium content ,and there is significant difference between the content of selenium of the mushroom fruit body that collected from the first and second harvesting time.

Analisis senyawa volatil dari ekstrak tanaman yang berpotensi sebagai atraktan parasitoid telur wereng batang coklat, Anagrus nilaparvatae (Pang et Wang) (Hymenoptera: Mymaridae) Surjani Wonorahardjo; Nurindah Nurindah; Dwi Adi Sunarto; Sujak Sujak; Neena Zakia
Jurnal Entomologi Indonesia Vol 12 No 1 (2015): Maret
Publisher : Perhimpunan Entomologi Indonesia

Plants produce volatiles as communication cues intra- or inter- species. Infested plants by herbivores will produce volatiles as indirect defense mechanism that attracts natural enemies of herbivores. Analysis of volatiles compounds produced by rice plant as result of infested brown plant hopper (BPH), Nilaparvata lugens Stí¢l, was done to identify compounds in the volatiles that potentially can be used as attractant for egg parasitoids of BPH, Anagrus nilaparvatae (Pang et Wang) (Hymenoptera: Mymaridae). This research was an early stage to develop formulation of parasitoid attractant. The research activities include volatiles extraction of infested rice stem by BPH eggs using acetone, n-hexane as the extraction solvents; analyses of volatile compounds with GC-MS; and bioassay of parasitoid orientation behavior to the volatiles using olfactometer methods. Extraction methods applied were maceration and continuous extraction followed by concentration. Bioassay on the parasitoid orientation behavior was done by using Y-tube olfactometer and every lot of bioassay using 30 parasitoid females with 3 replicates. The results showed that the volatile compounds of extract of infested rice stem by BPH eggs comprise of 16 components. The highest proportion of the components extracted with acetone is 2-Pentanone, 4-hydroxy-4-methyl (19,9%), while those with n-hexane is Hexanedioic acid, dioctyl ester (65%). A. nilaparvatae showed positive response to the volatiles extracted from infested rice plant by N. lugens eggs. Therefore, the volatiles can be used as an attractant for the egg A. nilaparvatae to support rice pest management.

The Application of Instagram Social Media to Qualitative Analysis Materials for Groups I and II to Increase Student Interest in Learning Deni Ainur Rokhim; Hayuni Retno Widarti; Munzil Munzil; Neena Zakia
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 6 (2022): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i6.2446

This study aims to determine the effectiveness of the application of Instagram media on students' interest in learning group I and II cation analysis materials. The data collection method used qualitative analysis with a descriptive approach. The results of the media validation get an average score of 84.27%, so the media is very feasible to be used in this study. Respondents in this study were students who followed the @kimiafun2022 Instagram account and interacted in answering questions and responses on Instagram. The study results show that the Instagram application can effectively increase student interest in learning about group I and II cation analysis materials, which is considered problematic

The Effect of Integrated Instagram and Tiktok Learning Media With PBL Learning Model on Increasing Student Learning Outcomes on The Topic of Qualitative Analysis of Cation Hayuni Retno Widarti; Deni Ainur Rokhim; Munzil Munzil; Neena Zakia
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 7, No 3 (2022): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

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

Information and communication technology development demands a transformation of education, especially in fulfilling innovation in learning media. Learning media is an urgent means of teaching and learning chemistry. Students' skills can be developed by increasing motivation and collaboration through digital technology. This research aims to determine the effect of the integrated Instagram (IG) and TikTok with the PBL learning model on student learning outcomes in qualitative analysis courses. The research method used was a quasi-experimental research design with a Pretest-Posttest Control Group design. The sample used came from a 2nd-year undergraduate student, Department of Chemistry, the State University of Malang, which consisted of 4 classes, two control classes with 44 students and two experimental classes with 50 students. Data analysis used preliminary tests and hypothesis testing. The preliminary test of the research data showed that the data were not normally distributed, so the hypothesis test used the Mann-Whitney test. The results of the hypothesis test show the Asymp value. Sig. (2-tailed) of 0.021 (0.021<0.05), it can be concluded that the use of integrated IG and TikTok learning media with the PBL learning model can increase student learning outcomes of 2nd-year undergraduate students on qualitative analysis of cation

Pelatihan Pembuatan Sel Volta dengan Minyak Jelantah dan Penambahan Katalis Silika Pada Pembelajaran Ilmu Pengetahuan Alam (IPA) SMP Negeri 4 Pasuruan dalam Meningkatkan Kualitas Riset Dika Putra Wijaya; Nuzulia Qur'ani; Maritza Verda Zahirah; Adilah Aliyatulmuna; Meyga Evi Ferama Sari; Danar Danar; Neena Zakia
I-Com: Indonesian Community Journal Vol 3 No 2 (2023): I-Com: Indonesian Community Journal (Juni 2023)
Publisher : Fakultas Sains Dan Teknologi, Universitas Raden Rahmat Malang

SMPN 4 Pasuruan merupakan salah satu sekolah negeri di Kota Pasuruan, sekolah ini terletak di Kecamatan Purworejo di Kota Pasuruan. Lebih tepatnya berada di Jalan RW. Monginsidi, No. 56, Kebonagung, Kecamatan Purworejo, Kota Pasuruan, Jawa Timur, 67111. Pengabdian ini merupakan bagian dari skema Pengabdian Mahasiswa kategori bidang sains, teknologi, dan lingkungan, melalui bidang unggulan penerapan ipteks untuk pengelolaan potensi unggulan lokal Jawa Timur. Pengabdian ini dilakukan dengan beberapa tahap, yaitu 1) Melakukan sosialisasi kepada siswa ataupun siswi SMPN 4 Pasuruan mengenai kandungan dan potensi bahan hayati lokal (minyak jelantah) untuk dibuat biodiesel secara mandiri dalam memproduksi minyak tersebut menggunakan sel elektrolisis dengan potensi pemasaran produknya, 2) Melakukan pendampingan secara langsung untuk melatih siswa atau siswi SMPN 4 Pasuruan tersebut dan penyediaan peralatan produksi minyak jelantah dan, 3) Pembuatan laporan. Luaran yang dijanjikan dari pengabdian ini adalah 1) Laporan Kemajuan dan Akhir, 2) Publikasi artikel ilmiah/media sosial. Kesimpulan dari pengabdian masyarakat ini bertujuan untuk memberikan pelatihan keterampilan dan pengetahuan kepada para peserta yang merupakan siswa/i maupun guru SMPN 4 Pasuruan tentang pemanfaatan minyak jelantah untuk membuat produk kewirausahaan. Target yang dicapai dalam program ini adalah peserta mampu mengetahui dan mengolah bahan utama berupa minyak jelantah menjadi produk kewirausahaan yang lebih bermanfaat.

The Use of Integrated Learning Media of TikTok and Instagram Social Media on Student Learning Motivation on Cation Qualitative Analysis Materials Groups I and II Hayuni Retno Widarti; Munzil Munzil; Neena Zakia; Deni Ainur Rokhim; Afis Baghiz Syafruddin; Zalfa Adhya Rachmanita
JCER (Journal of Chemistry Education Research) Vol. 7 No. 1 (2023): Volume 7. No 1. June 2023
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jcer.v7n1.p169-177

This study was conducted to determine the effect of using integrated learning media TikTok and Instagram in increasing students' learning motivation in qualitative analysis materials for groups I and II. The research method used is descriptive qualitative research method using a distributed questionnaire to determine the increase in students' learning motivation. This research was conducted in one of the State Vocational High Schools in Malang City which involved 29 students of class XII Analytical Chemistry 1. Data analysis was in the form of a qualitative test on students' learning motivation. The results of the study indicate that the use of TikTok and Instagram learning media can increase students' motivation to study qualitative analysis materials for groups I and II. The existence of integrated learning media for TikTok and Instagram social media, allows students to learn material anytime and anywhere.

Pelatihan Pembuatan Elektrolisis Dengan Minyak Jelantah Pada Pembelajaran SMPN 4 Pasuruan Dalam Meningkatkan Kualitas Riset: Industri Kreatif Wijaya, Dika Putra; Fitriyani, Citra Eka; Kurnia, Nur Laili Eviana Indah; Aliyatulmuna, Adilah; Zakia, Neena; Sari, Meyga Evi Ferama Sari; Danar, Danar; Putri, Nasywa Alifia Sandi; Darmawan, Fairuz Indah; Kholilah, Khusnul
Prapanca : Jurnal Abdimas Vol. 3 No. 2 (2023): Prapanca : Jurnal Abdimas
Publisher : LPPM Stikosa - AWS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37826/prapanca.v3i2.518

SMPN 4 Pasuruan is one of the public schools in Pasuruan City, this school is located in Purworejo District in Pasuruan City. More precisely located on Jalan RW. Monginsidi, No. 56, Kebonagung, Purworejo District, Pasuruan City, East Java, 67111. This service is part of the Student Service scheme in the science, technology and environment categories, through the leading areas of science and technology implementation for the management of East Java's local superior potential. This service is carried out in several stages, namely 1) Conducting socialization to students of SMPN 4 Pasuruan regarding the content and potential of local biological materials (used cooking oil) to be made biodiesel independently in producing this oil using electrolysis cells with the potential for marketing the product, 2) Conducting direct assistance to train students at SMPN 4 Pasuruan and provide used cooking oil production equipment and, 3) Report preparation. The promised outputs from this service are 1) Progress and Final Reports, 2) Publication of scientific articles/social media. The conclusion of this community service aims to provide skills and knowledge training to participants who are students and teachers of SMPN 4 Pasuruan about using used cooking oil to make entrepreneurial products. The target achieved in this program is that participants are able to know and process the main ingredient in the form of used cooking oil into more useful entrepreneurial products.

Analisis senyawa volatil dari ekstrak tanaman yang berpotensi sebagai atraktan parasitoid telur wereng batang coklat, Anagrus nilaparvatae (Pang et Wang) (Hymenoptera: Mymaridae) Wonorahardjo, Surjani; Nurindah, Nurindah; Sunarto, Dwi Adi; Sujak, Sujak; Zakia, Neena
Jurnal Entomologi Indonesia Vol 12 No 1 (2015): Maret
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.12.1.48

Plants produce volatiles as communication cues intra- or inter- species. Infested plants by herbivores will produce volatiles as indirect defense mechanism that attracts natural enemies of herbivores. Analysis of volatiles compounds produced by rice plant as result of infested brown plant hopper (BPH), Nilaparvata lugens Stí¢l, was done to identify compounds in the volatiles that potentially can be used as attractant for egg parasitoids of BPH, Anagrus nilaparvatae (Pang et Wang) (Hymenoptera: Mymaridae). This research was an early stage to develop formulation of parasitoid attractant. The research activities include volatiles extraction of infested rice stem by BPH eggs using acetone, n-hexane as the extraction solvents; analyses of volatile compounds with GC-MS; and bioassay of parasitoid orientation behavior to the volatiles using olfactometer methods. Extraction methods applied were maceration and continuous extraction followed by concentration. Bioassay on the parasitoid orientation behavior was done by using Y-tube olfactometer and every lot of bioassay using 30 parasitoid females with 3 replicates. The results showed that the volatile compounds of extract of infested rice stem by BPH eggs comprise of 16 components. The highest proportion of the components extracted with acetone is 2-Pentanone, 4-hydroxy-4-methyl (19,9%), while those with n-hexane is Hexanedioic acid, dioctyl ester (65%). A. nilaparvatae showed positive response to the volatiles extracted from infested rice plant by N. lugens eggs. Therefore, the volatiles can be used as an attractant for the egg A. nilaparvatae to support rice pest management.

Coffee Chemistry, as Microlearning Content for Public Courses at Universities’ MOOC System, A Preliminary Attempt Wonorahardjo, Surjani; Zakia, Neena; Rusdi, Hanumi Oktiyani; Kusumaningrum, Irma Kartika
JPP (Jurnal Pendidikan dan Pembelajaran) Vol 30, No 1 (2023)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um047v30i12023p32-36

An attempt to have a scientific course for the public from higher education institutions was done by preparing a good set of contents for one particular topic of interest, which is also a science topic. Coffee chemistry is the topic chosen and some content was developed, including videos, audio-embedded social media, infographics and motion graphics packed with 8 topics. The choice of coffee amongst many sciences’ topic is considered strategic in bringing science to all audiences of society. Science content must explain nature as the object in wholistic concepts, starting from smaller parts of each division, including chemistry. The microlearning approach is employed in the MOOC platform from The State University of Malang, Indonesia. This also is one of the three main tasks of higher education institutions which can be delivered in the MOOC system.

Pemanfaatan Pigmen Tanaman sebagai Pewarna Alami dalam Edukasi Pembuatan Lipstik Zakia, Neena; Wonorahardjo, surjani; Marfu'ah, Siti; Utomo, Yudhi; Ilham, Hilda Srivaliana
Jurnal KARINOV Vol 6, No 3 (2023): September
Publisher : Institute for Research and Community Service (LP2M), Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um045v6i3p138-142

Lipstik merupakan kosmetik dasar kaum hawa yang membuat wajah penggunanya menjadi segar berseri. Komponen lipstik yang beraneka macam merupakan bahan sintetis yang dapat membahayakan kesehatan. Di alam tersedia banyak pigmen alami yang dapat digunakan sebagai bahan pewarna yang aman bagi pengguna. Oleh sebab itu diperlukan edukasi kepada masyarakat untuk membuat lipstik yang berbahan dasar pigmen alami. Tujuan dari pengabdian kepada masyarakat ini adalah untuk mengedukasi masyarakat supaya mempunyai wawasan tentang lipstik, komponen yang mendasari, dan memberi keterampilan kepada masyarakat untuk membuat lipstik menggunakan pigmen tanaman. Diharapkan dari kegiatan ini, masyarakat dapat mengembangkannya sebagai produk unggulan UMKM. Sasaran kegiatan ini adalah kelompok ibu PKK yang umumnya berprofesi sebagai ibu rumah tangga. Metode pengabdian meliputi penyajian materi dan pelatihan. Hasil dari kegiatan ini adalah semua peserta sangat antusias terhadap pelatihan edukasi pembuatan lipstik dan berharap agar dilakukan pelatihan tentang produk kosmetik lainnya. Kata kunci— Lipstik, Pigmen alami, Ibu PKK wilayah Malang Abstract Lipstick is a basic cosmetic for women that makes the user’s face look fresh and radiant. The various components of lipstick are synthetic materials that can be harmful to health. In nature, many natural pigments can be used as safe dyes for users. Therefore, educating the public about making lipsticks made from natural pigments is necessary. This community service aims to inform the public so that they have insight into lipsticks. The underlying components provide the community with skills to make lipstick using plant pigments. From this activity, the community can develop it as a superior product for small-medium enterprises (SMEs). This activity targets a group of women (PKK) who generally work as housewives. The service method includes the presentation of materials and training. The result of this activity is that all participants are enthusiastic about the educational training on lipstick making and hope there will be training on other cosmetic products. Keywords— Lipstick, Natural pigments, Women society in Malang

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