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Development of the Fruit Peels of Rambutan (Nephelium lappaceum L.) into Herbal Tea Julinar, Julinar; Ananda, Dea; Huzaifah, Huzaifah; Musifa, Eva; Muharni, Muharni
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 11, No 1 (2026): February 2026
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v11.i1.18

Abstract

Rambutan (Nephelium lappaceum) peel contains various bioactive compounds, including phenolics, flavonoids, and ellagic acid, which function as antioxidants. Antioxidants are compounds needed to inhibit radical reactions and oxidation processes that trigger various diseases. This study aims to determine the potential of rambutan peel to become a herbal tea. The study began with the determination of total phenolic and flavonoid levels in aqueous extracts of rambutan peel, followed by antioxidant activity assessment using the DPPH and FRAP methods. As a comparison, tea from tea leaves (Camellia sinensis) and herbal teas from kelor (Moringa oleifera) leaves and senduduk (Melastoma malabathricum L) leaves were used. The results showed that the aqueous extract of rambutan peel had a total phenolic content of 344.07 mg GAE/g and a flavonoid content of 7.96 mg QE/g, higher than those of tea leaves, kelor leaves, and senduduk leaves. Antioxidant activity test using the DPPH method showed that rambutan peel aqueous extract is an active antioxidant with an IC₅₀ of 0.797 µg/mL, with antioxidant activity 5.45 times stronger than tea leaves, 10.33 times stronger than moringa leaves, and 4.32 times stronger than senduduk leaves. Antioxidant test using the FRAP method also showed that the antioxidant capacity of rambutan peel water extract is 29.66 mgTE/g, higher than those of tea leaves, kelor leaves, and senduduk leaves, with values of 19.84 mgTE/g, 6.12 mgTE/g, and 14.52 mgTE/g, respectively. These data indicate that rambutan peel has strong antioxidant activity and has the potential to be developed as a herbal tea.Keywords: Nephelium lappaceum peel, antioxidants, herbal tea, DPPH, FRAP
The Role of Peer Group Communication in Shaping Lifestyle and Behavior of Migrant University Students Ananda, Dea; Lestari , Hanum Dwi; Anggraini , Tiara; Narti , Sri
Multidisciplinary Journals Vol. 3 No. 1 (2026): March
Publisher : Universitas Dehasen Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37676/mj.v3i1.1179

Abstract

Migrant university students experience major social and behavioral changes as they transition into independent living away from parental supervision. During this period, peer group communication becomes a central factor influencing students’ perceptions, attitudes, and daily behaviors. Informal interactions among peers, such as social gatherings, leisure activities, and everyday conversations, serve as important channels through which values and lifestyle norms are shared and reinforced. This study aims to examine the role of peer group communication in shaping the lifestyle and behavior of migrant university students, particularly in relation to social adjustment, financial practices, and academic engagement. This research employs a qualitative descriptive approach using content analysis of six news articles that report on the lived experiences of migrant students in Bengkulu. The analysis focuses on communication patterns within peer groups and the behavioral responses that emerge from continuous social interaction. The findings indicate that peer communication strongly influences students’ understanding of social acceptance and freedom, often encouraging conformity to group norms. In many cases, this results in increased consumptive behavior, reduced self-regulation, and declining academic performance due to social pressure. However, the study also reveals that peer communication can generate positive outcomes when group interactions promote supportive and reflective dialogue. In such environments, students demonstrate improved adaptability, emotional awareness, and responsible decision-making. Overall, peer group communication plays a dual role as both a source of social pressure and a medium for personal development among migrant university students.
Co-Authors -, Sendagia Adyva, Muhammad Arya Agung Prayudha Hidayat Al Falif, Rifqoh Alfajriey, Rayhand Alfi Rahmi, Alfi Ali, RM Farhan Alifi, Auryel Arkan Amiruddin Amiruddin Andika Prasetya Nugraha Anggraini , Tiara Aprilia Putri, Cindy Aprillia, Refi Ardila, Vira Arien, Wilasari Asih Puji Utami Asrum, Muhamad Asti, Astirima Rima Atira, Fatin Farah Aulia, Novi Azizah, Desi Fayra Azzuhra, Dara Nabilah Berkhaty, Ayang Putri Bitticaca, Albert Benaya Tomatoto Bustari Hasan Dian Iriani Doni Hidayat, Doni Dwi Eka Paksi, Kartika Dwi Novitasari Ela Nuryani, Ela Fadatunnisah, Fitriani Fadhilah, Rika Falus, Candri Fatimah, Diana Firosalia Kristin Fitri, Maghfiroti Fitria, Lailani Fitriani, Reza Hasanah, Rahmatun Nurul Herlianto, Muhammad Zidane Hermanto, Koko Huzaifah, Huzaifah Iriani, indri Irmaningsih Ishara, Zahrani Athaya Jamaluddin Jamaluddin Julinar Julinar Jumaida, Siti Aisyah Jumratunnisah Jussac Maulana Masjhoer Kartin Aprianti Kholifatus Syaadah Kiki Anggriani Leonardo, Catherine Elizabeth Lestari , Hanum Dwi Maftukhah, Nur Afni Mahelda, Selvia Manik, Nijusiho Mardianti, Ririn Maulana, Fikri Fadhil Maulani, Iffah Mawan, Nirmawan Mazaya, Amalia Febryane Adhani Mensa , Dolfi Firdaus Muhammad Ridha Muhammad Ridwan Muhammad Yusuf Muharni Muharni Muhyani, Muhyani Mulyati Musifa, Eva Mutia Mutia, Mutia Nalanaya, Nalanaya Narti , Sri Neko, Jovan Engelbert Nila Sari, Vivi Ningsih, Nur Fitria Nurbayanti, Nishfu Nurfadila Nurfadila, Nurfadila Nurita Andriani Nurlaela, Eka Perdana, Anugrah Bagus Permata, Dinda Pratiwi, Oktrisa Puji Muniarty Purnama Putri, Aguilira Purwanti, Agnes Fia Bayu Putri Handayani putri, amanda Putri, Naila Amalia Putri, Stevani Rahma, Ade Nabilla Yushifa Ramadhan, Tengku Rahmat Randitha Missouri Raodatul Jannah Rezeki, Rinanda Sri Rianti, Fitrah Ridwan Siskandar Rinanda, Khairunnisa Yulia Riski, Bagus S, Herlisa Sabarrudin, Sabarrudin Safitri, Tria Safriyana Salma Taqwa Sari, Vivi Nila Savanah, Khadijah Meutia Sesar Husen Santosa Setiawan, Adil Shafira Shafira, Shafira Sidik, Fawwaz Afifah Siti Aisyah Sofie Nornalita Dewi Suhandi, Tjetjep Sujarwo, Makmur Suprayitno, Abdi Syahputra, Firman Syifa Fauzia, Syifa Syifa Pohan, Syainda Dewi Timah, Fatimah Ulfah, Baiq Maulinda Vairana, Aiska Warto - Wiyono, Joko Wulandari, Asputri Wulandari, Febri Yantoro, Awal Tunis Yustiani, Maulida Zahran, Fadhil Rizqi Az Zein, Fauzan Fadilah Zhuvaradifa, Vira Ziza Putri Aisyia Fauzi Zulaikha, Rana