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PENURUNAN KADAR GLUKOSA PADA TIKUS HIPERGLIKEMI DENGAN ASUPAN TEMPE KORO BENGUK (Mucuna pruriens L) Christiana Retnaningsih
PROSIDING SEMINAR NASIONAL & INTERNASIONAL 2014: PROSIDING SEMINAR NASIONAL HASIL - HASIL PENELITIAN & PENGABDIAN
Publisher : Universitas Muhammadiyah Semarang

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Abstract

A foodstuff that has a hypoglycemia potential is velvet beans (Mucuna pruriens L), espcially when it is in the form of a fermented product, i.e. tempe. The aim of study was toprove the effect of velvet beans tempe intake on blood glucose levelsThis research used randomized controlled group pre test- post test design using 50 maleSprague Dawley (SD) rats aged 2-3 months. The rats were subdivided into 5 groups, 10 rats pergroup, by means of random allocation. Group 1 is negative control (C-), group 2 is positivecontrol (C+), group 3 is X1-TK10%,  group 4 is X2-TK20%, group 5 is XTK30%. The groupsof C+, X1, X2, X33- are induced by 40 mg/kg body weight stereptozotocin dose by intra peritonealinjection. The research was conducted for 30 days. The data were analyzed with  One-wayAnova.The results showed that streptozotocin injection increased the level of blood glucose.Bioassay experiment demonstrated that velvet bean tempe diet reduced the level of bloodglucose in hyperglycemia rats.Key word :  Decreased glucose level, velvet bean tempe, hyperglycemia rat
Penyuluhan Penggunaan Asap Cair dan Kemasan Vakum Pada UMKM Makanan Berbasis Hasil Laut di Tambaklorok, Semarang Utara Meiliana Meiliana; Christiana Retnaningsih; Berta Bekti Retnawati
Magistrorum et Scholarium: Jurnal Pengabdian Masyarakat Vol 1 No 1 (2020)
Publisher : Universitas Kristen Satya Wacana Salatiga

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (735.691 KB) | DOI: 10.24246/jms.v1i12020p140-148

Abstract

Tambaklorok area in North Semarang has many Micro, Small, & Medium Enterprises (MSMEs) which produce seafood products, such as smoked fish, shrimp paste, fish or shrimp nugget, and fried anchovies. Most of the MSMEs in Tambaklorok still use traditional food technology for food processing and packaging, such as fish curing using smoke and simple packaging using plastic bags. The exposure of cooking smoke used for fish curing might impair the lung and respiratory system of the workers. Therefore, producers might utilize liquid smoke as an alternative smoked fish processing. Besides, in order to increase the production scale, producers might use vacuum packaging to extend the shelf life of food. The producers’ lack of knowledge regarding those processing and packaging alternatives might prevent the growth of their business ventures. For this reason, it is necessary to provide community outreach and counselling session to increase the knowledge and awareness of the producers on the processing and packaging alternatives. The participants welcomed such program and showed interests in applying those alternatives on their products.
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.