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Pengaruh Kondisi Ekstraksi Terhadap Aktivitas Antibakteri Caulerpa lentilifera terhadap Human Pathogenic Bacteria secara In-vitro Hendryanti, Dea Nathania; ., Lindayani
VITASPHERE Vol 1, No 1: Desember 2020
Publisher : Universitas Katolik Soegijapranata

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24167/vit.v1i1.2967

Abstract

Latar belakang: Caulerpa lentilifera atau dikenal juga sebagai anggur laut merupakan jenis rumput laut yang tersebar luas di Indonesia (nama lokal: Lato) namun, studi aktivitas antibakteri bahan pangan tersebut masih kurang diteliti.Tujuan penelitian: Penelitian ini bertujuan untuk mengetahui pengaruh waktu ekstraksi (1, 2, 3 hari) dan rasio sampel terhadap pelarut (1: 5, 1:10, 1:15) terhadap aktivitas antibakteri ekstrak C. lentilifera kering. Selain itu, penelitian ini juga bertujuan untuk mengetahui total kandungan fenolik dan korelasinya terhadap aktivitas antibakteriMetode: Penelitian ini menggunakan metode agar-disk diffusion untuk mengetahui aktivitas antibakteri secara in-vitro yang kemudian dilanjutkan dengan uji minimum inhibitory concentration (MIC) dan uji minimum bactericidal concentration (MBC). Metode Folin-Ciocalteu digunakan untuk mengetahui total kandungan fenolik.Hasil: Uji antibakteri menunjukkan aktivitas tertinggi, baik melawan bakteri Gram negatif maupun Gram positif (Bacillus cereus, Escherichia coli, Salmonella thypimurium dan Staphylococcus aureus) ketika sampel dimaserasi selama 72 jam dengan rasio sampel terhadap pelarut 1:15. Nilai MIC berkisar 1,5 - 6 mg/mL dengan rasio MBC : MIC kurang dari 4 yang merepresentasikan kemampuan C. lentilifera sebagai inhibitor kuat dan agen bakterisidal. Hasil pengamatan juga menunjukkan adanya korelasi yang sangat kuat (koefisien korelasi = 0,594) dan signifikan (Sig. = 0,001) antara kandungan total fenolik dengan aktivitas antibakteri.Kesimpulan: Penelitian ini memberikan bukti bahwa Caulerpa lentilifera memiliki potensi yang menjanjikan sebagai agen antibakteri alami melawan bakteri patogen penyebab penyakit pada manusia dimana, salah satu komponen bioaktifnya adalah senyawa fenolik
Studi Literatur: Potensi Tanaman Herbal Indonesia sebagai Imunostimulan dan Anti-stress untuk Pencegahan Covid-19 Berbasis Evidence-based Analysis Meithavia Suciady; Meiliana Meiliana; Dea Nathania Hendryanti
Praxis : Jurnal Sains, Teknologi, Masyarakat dan Jejaring Vol 4, No 1: September 2021
Publisher : Soegijapranata Catholic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24167/praxis.v4i1.3607

Abstract

World Health Organization has declared COVID-19 as the global pandemic. Strategies to improve the immune system to prevent infection of SARS-CoV-2 virus need to consider physiological and mental health aspects. Many researches have been discovered that various active components in Indonesian herbal plants may have the potential as immunostimulants and anti-stress which can be used as functional foods. This literature study aims to analyze the strength of scientific evidence related to the effect of polar bioactive compounds in various Indonesian herbal plants on the immune system, cytokines activity and the cortisol hormone to decrease the COVID-19 disease risk. The method used was a systematic review (PRISMA) with evidence-based analysis. This study found 7 types of Indonesian herbal plants which have potential to increase the immune system (CD4+ T cell lymphocytes, CD8+, CD25+, CD68+, B cell lymphocytes, NK cells) and immunoglobulin activity (IgA, IgG, IgE, IgM), lower the activity of proinflammatory cytokines (IL-2, IL-4, IL-6, IL-10, IL-12, IL-13, IL-1β, TNF-α, IFN-γ), help manage stress by suppressing the excessive secretion of cortisol and has anti-inflammatory as well as antioxidant properties.
Dietary Diversity, Stunting, and the Impact of an Education Program on Parents’ Knowledge and Attitudes in West Sumba, Indonesia Hendryanti, Dea Nathania; Andriani, Cynthia; Indriani, Sylvia; Gunawan, Lidyawati; Sibero, Mada Triandala
Jurnal Gizi dan Pangan Vol. 18 No. 2 (2023)
Publisher : The Food and Nutrition Society of Indonesia in collaboration with the Department of Community Nutrition, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25182/jgp.2023.18.2.79-88

Abstract

This pre- and post-test quasi-experimental study aimed to assess dietary diversity and its association with stunting among toddlers (13–60 months), examine the levels of knowledge and attitudes towards balanced and diverse diets among parents or caregivers, and evaluate the impact of customized flashcards and meal boxes as educational tools on parents’/caregivers’ knowledge and attitudes in three selected villages in West Sumba, Indonesia. A total of 59 parents/caregivers were recruited, 30% of whom had stunted toddlers. The levels of parents’/caregivers’ knowledge and attitudes were moderate. The results from the pre-test study show that Dietary Diversity Score (DDS) did not correlate with stunting status. Furthermore, neither knowledge nor attitudes was discovered to be related to DDS. The use of flashcards and meal boxes in the educational program improved the scores of knowledge (p<0.05) and attitudes (p<0.05) from the pre-test scores. There was a positive correlation between knowledge and attitudes, either before or after the education program (r=0.362, p<0.05 and r=0.562, p<0.05, respectively). To summarize, this study has the potential to be applied in other rural and remote areas.
Identifikasi Peptida Umami dan Kokumi pada Rumput Laut Sargassum aquifolium dengan Pendekatan In Silico Larasati, Bernadeta Pingkan; Soedarini, Bernadeta; Hendryanti, Dea Nathania; Retnaningsih, Christiana; Fatmawati, Dina; Pratiwi, Alberta Rika
Jurnal Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 20, No 1 (2025): Juni 2025
Publisher : Politeknik - Ahli Usaha Perikanan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jpbkp.v20i1.1003

Abstract

Sargassum aquifolium memiliki kandungan protein dan asam glutamat yang tinggi, sehingga dapat dimanfaatkan menjadi bahan penyedap rasa. Rasa umami dapat dihasilkan oleh peptida taste-active yang berkontribusi dalam meningkatkan rasa umami dan memberikan sensasi rasa kokumi. Meskipun banyak penelitian mengenai peptida umami dan kokumi dalam bahan pangan, namun penelitian sejenis pada rumput laut belum banyak ditemukan. Analisis in silico telah banyak dilakukan untuk memprediksi dan mengidentifikasi peptida dengan taste-active umami dan kokumi pada bahan pangan dan efektif dalam mengevaluasi rasa peptida sebelum dilakukan evaluasi secara in vitro dan in vivo. Tujuan penelitian ini adalah memprediksi dan mengidentifikasi keberadaan peptida taste-active yang berkontribusi terhadap rasa umami dan kokumi pada rumput laut S. aquifolium dengan analisis in silico. Ekstraksi peptida S. aquifolium menggunakan pelarut air dengan metode reflux dan ultrasound, isolasi dan purifikasi peptida berdasarkan berat molekul. . Peptida hasil isolasi dianalisis berat molekulnya menggunakan Tricine-SDS-PAGE dan aktivitas sensori potensial secara in silico menggunakan database BIOPEP-UWM. Hasil penelitian menunjukkan analisis Tricine-SDS-PAGE menemukan 5 pita peptida yaitu 673 Da, 797 Da, 1.019 Da, 1.195 Da, dan 1.408 Da. Analisis in silico menunjukkan sekuen DFVEVPTGSN (1.019 Da) dan DTPDFVEVATESP (1.408 Da) diprediksi sebagai peptida umami yang ditandai adanya residu asam amino aspartat (D), dan asam amino glutamat (E), serta peptida ES, EV, TE, VE. Namun, tidak ditemukan peptida yang menunjukkan potensi kokumi. Pendekatan ekstraksi Water Soluble Extraction (WSE) menggunakan metode reflux dan ultrasound, serta pendekatan dengan in silico berhasil mengidentifikasi peptida taste-active umami, namun kurang efektif dalam mengidentifikasi peptida kokumi dari S. aquifolium .ABSTRACTSargassum aquifolium has high protein and glutamic acid to be used as a flavor enhancer. The umami taste can be produced by taste-active peptides which contribute to enhancing umami taste and providing kokumi taste sensation. Although there has been a lot of research on umami and kokumi peptides, similar research on seaweed has not been widely found. In silico analysis has been carried out to predict and identify taste-active peptides umami and kokumi in food and is effective in evaluating the taste of peptides before in vitro and in vivo evaluation. This research aimed to predict and identify taste-active peptides that contributed to umami and kokumi in S. aquifolium using in silico analysis. This research consisted of extracting S. aquifolium peptides using water with reflux and ultrasound methods, isolating and purifying peptides based on molecular weight. The isolated peptides were analyzed for their molecular weight using Tricine-SDS-PAGE and in silico potential sensory activity analysis using the BIOPEP-UWM database. Based on the Tricine-SDS-PAGE analysis, found 5 peptide bands 673 Da, 797 Da, 1,019 Da, 1,195 Da, and 1,408 Da. In silico analysis showed that the sequences of DFVEVPTGSN (1,019 Da) and DTPDFVEVATESP (1,408 Da) were predicted as umami peptides characterized by the presence of aspartate (D) and glutamic (E) amino acid residues, as well as ES, EV, TE, and VE peptides. However, no peptides were found that showed kokumi potential. The Water Soluble Extraction (WSE) approach using the reflux and ultrasound method, as well as in silico approach, succeeded in identifying the taste-active umami peptide, but was less effective in identifying the taste-active kokumi peptide from S. aquifolium.