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lindawati setyaningrum
Universitas Dr. Soebandi
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Journal : Eksakta : Berkala Ilmiah Bidang MIPA

 1 
The Effect of Extraction Methods on the Total Phenols and Total Flavonoids Content of Jackfruit (Artocarpus heterophyllus Lamk) Peels Extract Dyan Wigati; Lindawati Setyaningrum; Dwi Koko Pratoko
EKSAKTA: Berkala Ilmiah Bidang MIPA Vol. 24 No. 01 (2023): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464)
Publisher : Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/eksakta/vol24-iss01/371

Abstract

Jackfruit (Artocarpus heterophyllus Lamk), especially the flesh usually consumed in a ripe state. The jackfruit peel is a non-edible waste. The research aims to determine the effect of different extraction methods on the total phenolic content and total flavonoid content of jackfruit peel extract. Extraction methods are percolation, maceration, and digestion. The total phenolic content (TPC) and total flavonoid content (TFC) using a spectrophotometer with AlCl3 and Folin-ciaocalteu reagents. Rutin and gallic acid as a standarts.  The data from various extraction methods were analyzed statistically by One-Way Anova. The results showed TPC values by percolation, maceration, and digestion respectively 5.94 ± 0.92; 3.03 ± 0.16 and 2.72 ± 0.22 (GAE mg/g). The TFC respectively 13.04 ± 0.38; 5.49 ± 0.33 and 4.16 ± 0.28 (RTE mg/g). Statistical analysis showed that there were significant differences (p < 0.05) in the levels of flavonoids and total phenolics between various extraction methods from the ethanol extract of jackfruit peel. The percolation method showed the highest TPC, TFC, and yield rather than other methods.
Antioxidant Activity of Red Dragon Fruit Teabag (Hylocereus polyrhizus) Peels with the Addition of Ginger (Zingiber officinale var. amarum) and Cinnamon (Cinnamomum zeylanicum, BI) Wima Anggitasari; Lindawati Setyaningrum; Muhammad Rofik Usman; Dyan Wigati
EKSAKTA: Berkala Ilmiah Bidang MIPA Vol. 24 No. 02 (2023): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464)
Publisher : Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/eksakta/vol24-iss02/377

Abstract

Free radicals have very unstable and reactive molecules. Excessive free radicals can trigger oxidative stress and cause various diseases. The peel of red dragon fruit contains chemical compounds that shows potential as an antioxidants. This study aims to optimize the benefits of red dragon fruit peels as tea bags because its convenient and simple to use. Design of this study was a randomized block design (RBD) which consisted of two factors, the drying temperature of the red dragon fruit skin (T) and the teabag formulation (F). Ginger and cinnamon are added as flavoring ingredients to the formula. The result showed that the drying temperature of the peel red dragon fruit affects the antioxidant activity of the teabag, where T1 has the highest antioxidant activity. The formulation of teabags also affects the antioxidant activity of the teabag, where F1 has the highest antioxidant activity. T1F1 had the highest antioxidant activity, and the interaction between the two (T and F) had a significant effect on antioxidant activity (p < 0.05).
Co-Authors Adelia Royan Suryani Aditya F. Ardinsyah Aliyah Purwanti Aliyah Purwanti Amalia Wardatul Firdaus Ayu Dwi Wardani Dhina Ayu Susanti Dhina Ayu Susanti Diah Yuli Pangesti Dina Trianggaluh Fauziah Dwi Koko Pratoko Dyan Wigati Ima F. Lestari Iski Weni Pebriarti Khrisna Agung Cendekiawan Lubis Nuril Ubaidilla Lulut Sasmito M. Rofik Usman Mega T. Wulandari Mohammad R. Usman Mohammad Rofik Usman Muhamad D. Permana nafisah isnawati Nur Azizah Perdani Puteri Syahuri Qurrotul Aini Rizki Indah Rahayu Shinta Mayasari Sholihatil Hidayati Stephanie D. Artemisia Tolak Haris Widaddhiya Zahra Anggraini Wima Anggitasari