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Pengaruh Fermentasi dan Asal Biji Kakao Terhadap Mutu Produk Olahan Kakao (Coklat Batang) Darmawan, D; Yusuf, Muhammad; Wisdawati, Eka; Poleuleng, Andi Besse; Monika, M; Ayu, Andi; Hala, Dian; Slamet, S; Zulkifli, Z; Wardani, Firda
Jurnal Galung Tropika Vol 12 No 2 (2023)
Publisher : Fakultas Pertanian, Peternakan dan Perikanan Universitas Muhammadiyah Parepare

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/jgt.v12i2.1073

Abstract

The source of raw materials and the fermentation process carried out really need to be considered when processing it into chocolate bar products. This research aimed to determine the effect of seed origin and fermentation treatment on product quality and quality. The treatments in this research were cocoa beans from Soppeng Regency (South Sulawesi) and Polman Regency (West Sulawesi) with differences in fermentation time, namely 5 days and 7 days. The research results show that the raw material for cocoa beans used in making processed chocolate bars is influenced by the origin of the beans and the fermentation treatment. Visual test results showed that there was no difference in results for seeds from Soppeng and Polman. The processed product is brown in color and has a distinctive aroma because it comes from fermented cocoa beans. Testing for water content and fat content is greatly influenced by the fermentation process where a good stirring process during the fermentation process can increase the fat content and reduce the water content. Test results for metal contamination: Lead <0.0134, Cadmium <0.0013, Tin <0.0776, Mercury and Arsenic <0.0002. The results of microbial testing were TPC 1.2 x 101 and 7.0 x 101 colonies/g, Escherichia coli <3, Mold and Yeast 1.3 x 102 and 7.0 x 101 colonies/g and Salmonella was negative. The results of testing for metal contamination and microbiology show that processed cocoa products (chocolate bars) at the Politani Pangkep cocoa processing workshop are safe for consumption because they have test results below the SNI reference value.
Pembelajaran Daring Dengan Menggunakan Aplikasi Whatsapp Pada Masa Covid 19 Varian Omicron di SD Muhammadiyah Cikacang Kadungora Kabupaten Garut Holid; Darmawan, D
Petik: Jurnal Pendidikan Teknologi Informasi Dan Komunikasi Vol. 8 No. 2 (2022): Volume 8 No 2 Tahun 2022
Publisher : Pendidikan Teknologi Informasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/petik.v8i2.1254

Abstract

Abstrak— Penelitian ini dilatari oleh fakta bahwa pembelajaran daring identifik dengan penurunan aktivitas dan hasil belajar peserta didik hampir di semua jenjang sekolah. Untuk itu, penulis bertujuan mendeskripsikan teknik pembelajaran daring dengan menggunakan whatsapp, tingkat keaktifan peserta didik, hasil belajar dan kendala-kendala yang ditemui selama pembelajaran daring masa covid-19 varian omicron. Jenis penelitian ini bersifat kualitatif dengan metode deskriptif, dan studi literatur yang digunakan oleh penulis bertujuan untuk melakukan pencarian terhadap berbagai sumber tertulis, baik berupa buku-buku, arsip, majalah, artikel, dan jurnal, atau dokumen-dokumen yang relevan dengan permasalahan yang diteliti. Hasil penelitian menunjukkan bahwa pelaksanaan pembelajaran dilakukan malam hari, dan tugas pembelajaran dikumpulkan di siang hari berikutnya. Pendidik menginformasikan jadwal ke grup whatsapp, kemudian mengirimkan materi, dan soal evaluasi dalam bentuk poto. Keaktifan siswa cukup tinggi. Hasil belajar setelah dilakukan pembelajaran daring selama periode varians omicron berada di atas KKM (70). Solusi atas kendala adalah sebanyak 4 peserta didik yang tidak memiliki HP diinstruksikan untuk menyakan ke teman terdekatnya untuk mengetahui instruksi belajar dan pengumpulan tugas. Bagi yang terkendala sinyal dan kuota, diberikan toleransi waktu pengerjaan tugas belajar Kata Kunci — Pembelajaran Online, Whatsapp, Covid-19 Omicron Abstract — This research is motivated by the fact that online learning is identified with a decrease in student activity and learning outcomes at almost all school levels. For this reason, the author aims to describe online learning techniques using whatsapp, the level of student activity, learning outcomes and the obstacles encountered during online learning during the omicron variant of covid-19. This type of research is qualitative with descriptive methods, and the study of literature used by the author aims to search various written sources, whether in the form of books, archives, magazines, articles, and journals, or documents relevant to the problem being studied. The results showed that the implementation of learning was carried out at night, and learning assignments were collected during the following day. The teacher informs the schedule to the whatsapp group, then sends materials and evaluation questions in the form of photos. Student activity is quite high. Learning outcomes after online learning during the Omicron variance period were above the KKM (70). The solution to the problem was that as many as 4 students who did not have cellphones were instructed to ask their closest friends to find out learning instructions and collecting assignments. For those who are constrained by signals and quotas, they are given a tolerance for learning assignments. Keywords — Online Learning, Whatsapp , Covid-19 Omicron
THE RISE OF FACEBOOK MARKETPLACE IN INDONESIA: TRENDS, NEGOTIATION DYNAMICS, AND DIGITAL COMMERCE SHIFTS Lo, Michaela GY; Kulsum, Nieke M; Darmawan, D
Journal of Social Political Sciences Vol 6 No 2 (2025): May 2025
Publisher : Universitas Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52166/jsps.v6i2.279

Abstract

The rapid expansion of Facebook Marketplace has redefined the landscape of digital commerce in Indonesia, serving as a low-barrier platform that facilitates informal buying and selling activities. In the context of increasing internet penetration and the widespread adoption of online shopping—exacerbated by the COVID-19 pandemic—this platform has become an essential medium for everyday economic transactions. This study explores the dynamics of negotiation and communicative behavior among Indonesian users of Facebook Marketplace, with particular attention to broader shifts in consumer interaction patterns within digital environments. Employing a qualitative, phenomenological methodology, this research focuses on the lived experiences of two experienced users selected through purposive sampling. Data were gathered via in-depth interviews and naturalistic observation, and analyzed through the stages of data reduction, data display, and conclusion drawing, following the analytical framework of Miles and Huberman. The findings indicate that negotiation practices on Facebook Marketplace constitute strategic and performative acts, heavily influenced by users’ digital literacy, impression management strategies, and responsiveness to social cues. Informants engaged in storytelling, employed multiple accounts, utilized emotional appeals, and adopted persuasive linguistic techniques to shape negotiation outcomes. These practices are interpreted through Goffman’s dramaturgical theory, wherein interactions are seen as performances alternating between front-stage and back-stage behavior. Despite the absence of physical presence, users rely on digital semiotics—such as emojis, tone modulation in text, and contextual signaling—to convey intentions and cultivate trust. This research contributes to the understanding of digital negotiation in Southeast Asian social commerce contexts, highlighting the ways in which platforms like Facebook Marketplace foster novel forms of economic participation, digital communication, and self-presentation.
Motilitas Spermatozoa Kerbau Lumpur pada Penyimpanan Semen Beku dalam Es Rosadi, Bayu; Sumarsono, Teguh; Darmawan, D
Jurnal Ilmiah Ilmu-Ilmu Peternakan Vol 18 No 2 (2015): November 2015
Publisher : Fakultas Peternakan Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (202.646 KB) | DOI: 10.22437/jiiip.v18i2.2679

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh lama penyimpanan semen beku dalam es terhadap motilitas spermatozoa kerbau lumpur. Rancangan percobaan yang digunakan yaitu Rancangan Acak Lengkap dengan 5 perlakuan dan 5 kali ulangan. Perlakuan yang dilakukan meliputi: semen beku yang dithawing langsung dari nitrogen air (P0), penyimpanan dalam es selama 15 menit (P1), penyimpanan dalam es selama 30 menit (P2), penyimpanan dalam es selama 45 menit (P3), penyimpanan dalam es selama 60 menit (P4).. Peubah yang diamati adalah motilitas spermatozoa dan recovery rate. Data yang diperoleh dianalisis menggunakan sidik ragam. Hasil penelitian menunjukkan bahwa penyimpanan semen beku dalam es mempengaruhi motilitas dan recovery rate spermatozoa kerbau lumpur (P<0,05). Motilitas, dan recovery rate P0 lebih tinggi dibandingkan P1, P2, P3, dan P4 (P<0,05). Motilitas P0, P1, dan P2 masih diatas 40%. Dapat disimpulkan bahwa penyimpanan semen beku dalam es menurunkan kualitas spermatozoa kerbau, semen beku kerbau dapat disimpan selama 30 menit dalam es sebelum dithawing.