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All Journal HAYATI Journal of Biosciences Jurnal Natur Indonesia BIOTROPIA - The Southeast Asian Journal of Tropical Biology Abdimas Dewantara Keluwih: Jurnal Sains dan Teknologi Indonesian Community Journal
Yanti Lim
Atma Jaya Catholic University
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Mechanical Engineering Public Health Social Sciences Veterinary Other

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Inhibition of Urokinase-Type Plasminogen Activator Expression by Macelignan in Porphyromonas gingivalis Supernatant-Induced Human Oral Epithelial Cells . Yanti
HAYATI Journal of Biosciences Vol. 17 No. 1 (2010): March 2010
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (142.979 KB) | DOI: 10.4308/hjb.17.1.31

Abstract

 This study was to investigate the effect of macelignan on Porphyromonas gingivalis supernatant-induced uPA expression via regulating mitogen-activated protein kinase (MAPK) and activating protein-1 (AP-1) signaling pathways in human oral epithelial KB cells using casein zymography, Western blotting, reverse transcription-PCR and reporter gene assays. Zymographic analysis of secreted enzymes identified the main caseinolytic band at 54 kDa. Macelignan inhibited the expression of uPA protein and mRNA, as well uPA secretion, in KB cells exposed to P. gingivalis supernatant. Consistent with these findings, macelignan suppressed phosphorylation of p38 and c-Jun N terminal kinase (JNK) in P. gingivalis supernatant-induced KB cells. The levels of c-Fos and phosphorylated c-Jun, which together form AP-1, the transcription factor that is involved in uPA gene expression, were partially reduced by macelignan. Macelignan also blocked P. gingivalis supernatant-induced AP-1 activity in these cells. These results suggest that macelignan decreased P. gingivalis supernatant-induced uPA expression by blocking AP-1 activity, which may be mediated by inhibition of phosphorylation of p38 and JNK in KB cells. Macelignan may potently use for the modulation of periodontal inflammation.
Food Origin Fibrinolytic Enzyme With Multiple Actions Laurentia Stephani; Raymond Rubianto Tjandrawinata; Diana Nur Afifah; Yanti Lim; Wangsa Tirta Ismaya; Maggy Thenawidjaja Suhartono
HAYATI Journal of Biosciences Vol. 24 No. 3 (2017): July 2017
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (919.422 KB) | DOI: 10.4308/hjb.24.3.124

Abstract

Many health related problems such as cardiovascular diseases are associated with the formation of excessive clot in the blood (thrombus). Approaches in cardiovascular disease treatment are preventing the formation or removing the thrombus. The present thrombolytic agents can be classified as plasminogen activators, fibrinolytic enzyme which directly degrades fibrinogen or fibrin and heparin type which act as thrombin inhibitor. Recently, microbial fibrinolytic enzymes of food origin receive more attention that leads to escalating efforts to explore traditional fermented foods as the natural sources. We have successfully isolated microorganism from Indonesian fermented soybean tofu dregs “Oncom” that secretes fibrinolytic enzyme. The microorganism identified as Stenotrophomonas sp. is unique because most of the reported fibrinolytic microorganism belongs to Bacillus sp. This isolate was found to produce extracellular fibrinolytic enzyme which could degrade fibrinogen and fibrin directly as determined by fibrinogen zymography and fibrin plate methods. More importantly, the 30-kD purified enzymes was found to demonstrate not only fibrin and fibrinogen degradation capabilities, but also acted as thrombin inhibitor as determined using specific substrates for thrombin. This is the first report of a fibrinolytic enzyme that demonstrates additional synergistic activities. This finding accentuates the importance of further development of the enzyme into a powerful agent to treat the thrombus-related disease effectively.
GROWTH AND DEVELOPMENT OF OIL PALM SHOOTS UNDER DIFFERENT LIGHT QUALITIES Helena Patricia Manoh; Yanti Yanti; Nurita Toruan-Mathius
BIOTROPIA - The Southeast Asian Journal of Tropical Biology Vol. 28 No. 1 (2021): BIOTROPIA Vol. 28 No. 1 April 2021
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.0.0.0.903

Abstract

Light is one of the most important factor in plant tissue culture. The growth and development of plant in vitro are affected by light quality. This study examines the influence of different light qualities on the in vitro growth and development of oil palm shoots. Oil palm shoots were cultured in Murashige & Skoog medium under either white fluorescent lamp, white light-emitting diode (LED), red LED, blue LED, combination of red and blue LED, or in darkness. The results show that the growth and development of oil palm shoots are influenced by the light quality. Root initiation and shoot elongation were good under red light, while chlorophyll and sugar content was better produced under white and blue light than red light. In addition to white fluorescent lamp, the combination of red and blue LED resulted in higher growth parameter compared to other light treatments, but the results were not significantly different.
Inisiasi Bibit Andaliman (Zanthoxylum acanthopodium DC.) melalui Teknik Kultur In vitro Maria Madelaine Nicole; Yanti; Listya Utami Karmawan
Keluwih: Jurnal Sains dan Teknologi Vol. 4 No. 1 (2023): Keluwih: Jurnal Sains dan Teknologi (February)
Publisher : Direktorat Penerbitan dan Publikasi Ilmiah, Universitas Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24123/saintek.v4i1.5599

Abstract

Abstract— Andaliman (Zanthoxylum acanthopodium DC.) is one of the Indonesian spices that is not easy to be cultivated outside its natural habitat because it requires lower temperatures for its growth. This research aimed to determine the culture technique of andaliman plants using in vitro tissue culture techniques to solve the difficulties of plant cultivation outside its natural habitat. The explants used are seeds and nodal segments. Using seeds, methods were divided into seeds collection and sterilization and initiation. Methods using nodal segments explants were divided into sample collection, nodal sterilization, initiation, and shoot multiplication. Seed sterilization using 60 °C water which was replaced every six hours had lower contamination rate compared to other methods. Unfortunately, seeds germination and dormancy breaking were not exhibited in this research. Nodal segment sterilization using 0,1% (b/v) mercury chloride (HgCl2) exposed for seven minutes and addition of 100 IU mL-1 nystatin showed fewer contaminations. Multiplication using Murashige-Skoog (MS) media with addition of 1 ppm NAA and 5 ppm BAP (MSN1B5) produced nine shoots and produced callus. Overall, both explant sterilizations were successful, but it was recommended to use nodal segments as the explant due to success in producing andaliman plantlet in vitro. Keywords: andaliman, HgCl2, nystatin, plant tissue culture, woody plant medium Abstrak— Andaliman (Zanthoxylum acanthopodium DC.) adalah salah satu rempah Indonesia yang sulit untuk dibudidayakan di luar habitat aslinya karena membutuhkan suhu rendah untuk pertumbuhannya. Penelitian ini bertujuan untuk menentukan teknik perbanyakan tanaman andaliman menggunakan teknik kultur jaringan secara in vitro dengan memperhatikan beberapa faktor seperti larutan sterilisasi yang digunakan dan zat pengatur tumbuh (ZPT) yang diberikan. Eksplan yang digunakan adalah biji dan nodus. Metode penelitian dengan eksplan biji meliputi koleksi buah, germinasi, dan inisiasi eksplan. Metode penelitian dengan eksplan nodus dibagi menjadi koleksi bibit, inisiasi nodus, dan multiplikasi nodus. Sterilisasi permukaan biji menggunakan air hangat bersuhu 60 °C yang diganti setiap enam jam memiliki tingkat kontaminasi yang paling rendah dibandingkan dengan metode lainnya, tetapi germinasi dan pemecahan dormansi tidak terjadi pada penelitian ini. Sterilisasi permukaan nodus menggunakan larutan merkuri klorida (HgCl2) 0,1% (b/v) dengan durasi perendaman selama tujuh menit dan 100 IU mL-1 nistatin pada media menunjukkan tingkat kontaminasi yang lebih rendah. Multiplikasi menggunakan media Murashige-Skoog dengan penambahan 1 ppm NAA dan 5 ppm BAP (MSN1B5) menghasilkan organ tunas dalam jumlah yang paling banyak yaitu sebanyak sembilan tunas dan terbentuk kalus. Secara keseluruhan, sterilisasi kedua eksplan berhasil dilakukan, tetapi lebih disarankan menggunakan eksplan nodus karena dapat menghasilkan tunas andaliman secara in vitro. Kata kunci: andaliman, HgCl2, kultur Jaringan tanaman, nistatin, woody plant medium
Sosialisasi implikasi minyak jelantah kepada pedagang kantin di Kampus BSD, Universitas Katolik Indonesia Atma Jaya Daru Seto Bagus Anugrah; Adeline Mayvie Wijanarko; Juan David Sinanu; Yanti Yanti; Watumesa Agustina Tan; Krismanto Rabin Chandra
ABDIMAS DEWANTARA Vol 6 No 2 (2023): Article in Press
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/ad.v6i2.15731

Abstract

Minyak jelantah adalah minyak bekas yang diperoleh dari hasil menggoreng makanan. Penggunaan minyak jelantah berulang menyebabkan penurunan kualitas lingkungan dan manusia. Minyak jelantah mengandung zat polifenol dan akrilamida yang meningkatkan risiko kanker dan penyakit lainnya. Selain itu, minyak jelantah juga mempengaruhi kualitas makanan, menyebabkan perubahan rasa dan tekstur makanan. Pembuangan minyak jelantah sembarangan menyebabkan penumpukan pada saluran air dan tempat pembuangan sampah, berdampak negatif pada ekosistem dan organisme di perairan dan tanah. Namun demikian, minyak jelantah masih dapat dimanfaatkan menjadi produk yang lebih bermanfaat. Melihat hal ini, Universitas Katolik Indonesia Atma Jaya (Unika Atma Jaya) Bersama dengan PT Ubah Limbah Indonesia bekerja sama untuk mengedukasi pedagang di kantin Atma Jaya sebagai salah satu bagian masyarakat yang sering menggunakan minyak goreng. Tujuan kegiatan ini adalah untuk meningkatkan pengetahuan pedagang mengenai minyak jelantah serta bagaimana cara mengolahnya menjadi produk lain seperti lilin aromatik. Penyampaian materi dari empat pembicara menunjukkan adanya peningkatan pengetahuan dari pedagang mengenai minyak jelantah, dilihat dari hasil pre-test dan post-test serta analisis Wilcoxon Rank Test. Secara keseluruhan, upaya kolaboratif antara Unika Atma Jaya dan PT Ubah Limbah Indonesia untuk memberikan edukasi kepada pedagang kantin telah berhasil meningkatkan pengetahuan pedagang mengenai potensi dan pengolahan minyak jelantah.   Socialisation of the implications of used cooking oil to the canteen vendors at the BSD Campus of Universitas Katolik Indonesia Atma Jaya   Abstract: Used cooking oil is the residual oil obtained from frying food. Repeated use of used cooking oil leads to a decline in environmental and human quality. Used cooking oil contains polyphenols and acrylamide compounds that elevate cancer risk and other diseases. Furthermore, used cooking oil affects the quality of food, inducing alterations in taste and texture. Improper disposal of used cooking oil results in accumulation within waterways and waste disposal sites, adversely impacting ecosystems and aquatic and terrestrial organisms. Nevertheless, there is potential to repurpose used cooking oil into more beneficial products. Recognizing this, Atma Jaya Catholic University of Indonesia (Unika Atma Jaya), in collaboration with PT Ubah Limbah Indonesia, endeavors to educate vendors at the Atma Jaya canteen, a segment of society that frequently employs cooking oil. This initiative aims to enhance vendors' understanding of used cooking oil and its transformation into alternative products such as scented candles. Delivery of content by four presenters demonstrates an improvement in vendors' comprehension of used cooking oil, evident from pre-test and post-test results and Wilcoxon Rank Test analysis. Overall, the collaborative effort between Unika Atma Jaya and PT Ubah Limbah Indonesia to educate canteen vendors has effectively elevated their knowledge regarding the potential and processing of used cooking oil.
Bioremediation, Biosorption and Biodegradation of the Textile Dye Reactive Black 5 by Life Cultures of Trichoderma asperellum LBKURCC1 Titania Tjandrawati Nugroho; Putri Nabilah; Nuria Wulandari; Yuana Nurulita; Andi Dahliaty; Yanti Yanti
Jurnal Natur Indonesia Vol 21, No 2 (2023): October
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jnat.21.2.93-99

Abstract

Reactive black 5 (RB5) is an azo dye widely used in the textile industry for dyeing fabrics. It is categorized as a recalcitrant dye that is hard to degrade and an environmental pollutant. Therefore, textile waste effluents containing this dye must be treated to remove or degrade the dye, before being released into the environment. One method that can be used to degrade synthetic dyes such as RB5 is to use biological methods, by directly using live fungal cells or using laccase enzymes. Trichoderma asperellum LBKURCC1 is a filamentous fungus isolated from cacao plantation soil in Riau, Indonesia, and it is a laccase enzyme producer. To be able to determine the ability of T. asperellum LBKURCC1 life cultures to decolorize RB5 dye, several RB5 dye removal tests were carried out. Incubation of 50 ppm RB5 with life cultures of T. asperellum LBKURCC1 at room temperature (30°C, pH 6.5) for 24 hours resulted in 22% bioremediation, 3.2% biosorption and 19.1% biodegradation of the RB5 dye.  The results of this study show that the live culture of T.asperellum LBKURCC1 is capable of biodegrading RB5. This is indicated by the degradation of RB5 by extracellular enzymes produced by these filamentous fungi.
Pelatihan Pengolahan Mie Basah dan Permen Gummy Berbasis Buah Buni untuk Meningkatkan Asupan Gizi dan Ekonomi Masyarakat Meda Canti; Yanti
I-Com: Indonesian Community Journal Vol 4 No 2 (2024): I-Com: Indonesian Community Journal (Juni 2024)
Publisher : Fakultas Sains Dan Teknologi, Universitas Raden Rahmat Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33379/icom.v4i2.4538

Abstract

Asupan makanan yang kaya akan kandungan gizi seperti buah buni dapat menjadi solusi untuk mengatasi defisiensi vitamin C. Namun pemanfaatan buah buni saat ini masih terbatas karena kurangnya pengetahuan masyarakat dalam mengolah buah buni. Oleh karenanya diperlukan pelatihan pengolahan buah buni menjadi produk yang memiliki nilai tambah seperti mi basah dan permen gummy. Tujuan pelatihan ini ialah memberikan wawasan pengetahuan masyarakat mengenai manfaat dan pengolahan buah buni menjadi produk mi basah dan permen gummy. Metode pelaksanan kegiatan ini ialah pelatihan (penyampaian materi dan demonstrasi). Sebanyak 100% peserta sangat setuju bahwa pelatihan ini sangat bermanfaat dan memberikan wawasan pengetahuan mengenai manfaat gizi dan pengolahan buah buni. Peserta berhasil secara mandiri membuat mi basah dan permen gummy. Pendampingan berkelanjutan diperlukan bagi peserta yang ingin berwirausaha dengan produk olahan mi basah dan permen gummy berbasis buah buni.
Co-Authors Adeline Mayvie Wijanarko Andi Dahliaty Anugrah, Daru Seto Bagus Diana Nur Afifah Helena Patricia Manoh Juan David Sinanu Krismanto Rabin Chandra Laurentia Stephani Listya Utami Karmawan Maggy Thenawidjaja Suhartono Maria Madelaine Nicole Meda Canti Nuria Wulandari Nurita Toruan-Mathius Putri Nabilah Raymond R. Tjandrawinata Titania Tjandrawati Nugroho Wangsa Tirta Ismaya Watumesa Agustina Tan Yuana Nurulita