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All Journal agriTECH Indonesian Food and Nutrition Progress
Mayangsari, Yunika
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Agriculture, Biological Sciences & Forestry

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Enhancement in Bioaccessibility and Bioavailability of Phenolic Compounds during Black Glutinous Rice Tape Fermentation Azkia, Mita Nurul; Setyaningsih, Widiastuti; Mayangsari, Yunika; Cahyanto, Muhammad Nur
agriTECH Vol 44, No 4 (2024)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/agritech.92729

Abstract

Black glutinous rice (Oryza sativa var. glutinosa) tape fermented with various yeast, mold, and bacteria is often rich in phenolics compounds and can contribute positively to health through its antioxidants activity. Despite the potential, these compounds have limited bioavailability value due to their structure, degree of glycosylation or polymerization, and interactions with other components. Therefore, this study aims to determine the effect of fermentation on bioavailability and bioaccessibility of phenolics compounds in black glutinous rice tape. During the procedures, cooked black glutinous rice was inoculated with ragi tape for 72 hours. Sampling was then performed every 24 hours to analyze bioaccessibility of phenolics compounds, flavonoids, and antioxidants activity. Subsequently, absorption was carried out using an everted gut sac model. The results showed that phenolics compounds were released from the food matrix during gastric and small intestine digestion. Fermentation was shown to increase the content of accessible phenolics compounds from 19.89% to 27.31%, flavonoids from 68.88% to 81.72%, and antioxidants activity from 13.56% to 22.89%. During fermentation, the highest increments were obtained after 72 hours, with 27.31% for total phenolics compounds, 81.72% for flavonoid compounds, and 22.89% for antioxidants activity. The products obtained after 72 hours of fermentation exhibited significantly highest absorption, but no significant differences were observed between the duodenum and ileum segments. The absorption of these compounds in the jejunum from the extract was significantly higher in fermented samples. Therefore, fermentation significantly enhanced bioavailability of phenolics compounds in black glutinous rice tape.
A Comparison of Palm Oil, Beef Tallow, and Corn Oil Effect on Serum Glucose and Lipid Profile in Rats Fed a High-Fat Diet Utama, Zaki; Ningrum, Andriati; Mayangsari, Yunika; Raharjo, Sri
agriTECH Vol 44, No 2 (2024)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/agritech.84359

Abstract

This research aimed to investigate the influence of three types of palm oil products (RBDPO (refined bleached deodorized palm oi), RPO (red palm oil), and PKO (palm kernel oil)), on serum glucose and lipid profile of Sprague Dawley rats fed with experimental diet containing 20% of oils, comparing these effects with those of with animal- base oil (beef tallow) including corn oil as a representative from vegetable oil. The diet with level of fat 20% given to two groups (with and without AOM (azoxymethane)) of male Sprague Dawley rats for 13 weeks. The results exhibit that corn oil caused the lowest value of serum glucose (p < 0.05) in both AOM and non-AOM groups. Compared to other groups, beef tallow diet significantly increased serum triglycerides, cholesterol, and LDL, followed by RPO/PKO, RBDPO, and corn oil, respectively (p < 0.05). Meanwhile, corn oil diet produced the highest level of serum HDL, followed by RBDPO, PKO/RPO, and beef tallow (p < 0.05).
Total Phenolic, Flavonoid Content, and Antioxidant Activity of Ethanol Extracts and Flour from Pereskia sacharosa Griseb (Cactaceae) Leaves Junaidi, Junaidi; Suroto, Dian Anggraini; Mayangsari, Yunika
Indonesian Food and Nutrition Progress Vol 23, No 1 (2026)
Publisher : Indonesian Association of Food Technologists

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ifnp.107193

Abstract

Pereskia sacharosa is an unconventional food plant found in several regions, especially in Indonesia. Traditionally, the leaves of this plant are used as medicine for pain, allergies, and fever. This study aims to identify several bioactive compounds from the ethanol extract and flour of Pereskia sacharosa through the maceration method using 80% and 96% ethanol. In addition, phytochemical and antioxidant activity tests were carried out. The total phenolic content in the 80% ethanol extract, 96% ethanol extract, and Pereskia sacharosa leaf flour was (34.83 ± 0.89 mg GAE/g, 30.04 ± 0.67 mg GAE/g, and 5.66 ± 0.23 mg GAE/g), respectively. The total flavonoid content in the 80% ethanol extract, 96% ethanol extract, and Pereskia sacharosa leaf flour was (17.05 ± 1.70 mg QE/g, 15.40 ± 0.93 mg QE/g, and 8.01 ± 0.58 mg QE/g), respectively. Statistical analysis showed a significant difference (P < 0.05) between the extract samples and the leaf flour sample. The antioxidant activity, measured by IC50 values, was moderate for the 80% ethanol extract (251.09 ± 0.02 ppm) and 96% ethanol extract (204.55 ± 0.10 ppm) of Pereskia sacharosa leaves. In contrast, the leaf flour exhibited weak antioxidant activity, with an IC50 value of 571.88 ± 0.18 ppm.
Co-Authors Azkia, Mita Nurul Dian Anggraini Suroto Junaidi Junaidi Muhammad Nur Cahyanto Ningrum, Andriati Setyaningsih, Widiastuti Sri Raharjo Zaki Utama