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All Journal ROCE : Jurnal Pertanian Terapan WISDOM : Jurnal Pengabdian Kepada Masyarakat Wisdom Jurnal Sains dan Teknologi Pangan
Sakir
Universitas Halu Oleo
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Other

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EVALUATION OF ANTIOXIDANT ACTIVITY OF YELLOW COCONUT (Cocos nucifera L) USING THE DPPH METHOD: EVALUASI AKTIVITAS ANTIOKSIDAN KELAPA KUNING (Cocos Nucifera L) DENGAN METODE DPPH Baihaqi; Fatahu; Sakir; Andi Laila Nugrawati; Ika Rezvani Aprita; Sri Agustina
ROCE : Jurnal Pertanian Terapan Vol. 3 No. 1 (2026): JPT ROCE 5, 2026
Publisher : PT. ROCE WISDOM ACEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71275/roce.v3i1.171

Abstract

Yellow coconut (Cocos nucifera L) is an underexplored variety with significant potential in the agricultural and food sectors. Unlike regular coconuts, yellow coconuts have a distinct yellow skin and sweeter water. This study evaluates the antioxidant activity of yellow coconut water and flesh using the DPPH (2,2-Diphenyl-1-Picrylhydrazyl) method, which measures the ability to neutralize free radicals. Results indicate that both yellow coconut water and flesh contain bioactive compounds with notable antioxidant properties, though their activities vary depending on concentration. The water showed significant antioxidant activity at higher concentrations, whereas the flesh showed better activity at lower concentrations. The IC50 values for yellow coconut water and flesh were 900.6 ppm and 1342 ppm, respectively, showing that while both parts have promising antioxidant potential, higher concentrations are needed for more effective results. This research provides valuable insights into the potential of yellow coconut as a natural antioxidant source and its implications for food and health product development.  
TRAINING AND COMMUNITY MENTORING ON THE PRODUCTION OF VIRGIN COCONUT OIL (VCO) AND NATA DE COCO IN PADALEU SUBDISTRICT, KENDARI CITY: PELATIHAN DAN PENDAMPINGAN MASYARAKAT DALAM PEMBUATAN VIRGIN COCONUT OIL (VCO) DAN NATA DE COCO DI KELURAHAN PADALEU KOTA KENDARI Baihaqi; Sakir; Fatahu; Windayani; Ika Rezvani Aprita; Sri Agustina
WISDOM : Jurnal Pengabdian Kepada Masyarakat Wisdom Vol. 3 No. 1 (2026): JPKM WISDOM 5, 2026
Publisher : PT. ROCE WISDOM ACEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71275/wisdom.v3i1.181

Abstract

Padaleu Subdistrict, Kendari City, has significant potential for coconut resources, yet its utilization remains limited to low-value-added products. This community service activity aims to enhance the local community’s knowledge and skills through training and mentoring in producing Virgin Coconut Oil (VCO) and nata de coco as value-added coconut products with economic potential. The implementation method includes preparation, training through lectures and hands-on practice, production mentoring, and evaluation using pretest-posttest, skill assessments, and production outcomes. The results show an increase in participants’ knowledge, with an average pretest score of 52.44 rising to 72.88 in the posttest. Participants’ skills also improved, with the average score increasing from 2.15 to 3.31 on a 1–4 scale. The production success rate for VCO was 84%, while for nata de coco it was 56%, with a contamination rate of 20%. The difference in success rates indicates that VCO technology is easier to adopt than nata de coco, which requires stricter sanitation controls and fermentation processes. The activity is considered effective in enhancing the community’s capacity for coconut processing, given its local potential. Further mentoring is needed to improve product quality consistency, especially nata de coco, to ensure its sustainability and competitiveness as a household-based business.
ANALYSIS OF VITAMIN C CONTENT AND ANTIOXIDANT ACTIVITY OF GREEN COCONUT (Cocos nucifera L) USING THE DPPH METHOD: ANALISIS VITAMIN C DAN AKTIVITAS ANTIOKSIDANT PADA KELAPA HIJAU (Cocos nucifera L) MENGGUNAKAN METODE DPPH Baihaqi; Fatahu; Ika Rezvani; Sri Agustina; Sakir
ROCE : Jurnal Pertanian Terapan Vol. 3 No. 2 (2026): JPT ROCE 6, 2026
Publisher : PT. ROCE WISDOM ACEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71275/roce.v3i2.235

Abstract

Green coconut (Cocos nucifera L.) is one of the tropical horticultural commodities widely consumed by Indonesian people and is empirically believed to have health benefits due to its vitamin C and antioxidant compounds. This study aims to analyze the levels of vitamin C and antioxidant activity in water and green coconut meat using the 1,1-diphenyl-2-picrylhydrazyl (DPPH) method. Vitamin C levels were determined using the iodimetric titration method, while antioxidant activity was measured based on the percentage inhibition of DPPH radicals at five concentration series (1,000-5,000 ppm) using a UV-Vis spectrophotometer, then expressed as an IC50 value through a linear regression equation. The results showed that the average vitamin C levels in coconut water were 29.35 ± 5.08 mg/100 g and in coconut meat were 28.48 ± 4.93 mg/100 g. The IC50 value of coconut water was 5,824.52 ppm and coconut meat was 5,423.78 ppm, both well above the 200 ppm threshold, so both samples were classified as having very weak antioxidant activity based on the DPPH test. Coconut meat showed a slightly lower IC50 than coconut water, but the difference was not substantial. The low levels of vitamin C in both parts of the green coconut fruit are suspected to be one of the main factors in the weak antioxidant activity detected. This study provides baseline data on the antioxidant potential of fresh green coconut without further extraction treatment, which can be a reference for future research on the processing or fortification of coconut-based food products.
PENGARUH KONSUMSI SAYUR DAN BUAH TERHADAP STATUS GIZI ANAK  PADA USIA SEKOLAH DASAR Sakir; Rhenislawaty
Jurnal Sains dan Teknologi Pangan Vol. 11 No. 3 (2026): Jurnal Sains dan Teknologi Pangan
Publisher : Jurusan Ilmu dan Teknologi Pangan Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63071/m3nexh75

Abstract

Anak usia sekolah dasar memerlukan pola makan seimbang untuk mendukung pertumbuhan, perkembangan, dan status gizi yang optimal. Penelitian ini bertujuan menganalisis hubungan konsumsi sayur dengan status gizi anak usia sekolah dasar. Penelitian menggunakan metode kuantitatif dengan desain observasional analitik dan pendekatan *cross-sectional*. Data dikumpulkan secara daring melalui Google Form kepada orang tua atau wali anak usia 6–13 tahun menggunakan *purposive sampling*. Dari 38 respons yang diperoleh, sebanyak 29 anak memenuhi kelayakan analisis IMT/U. Konsumsi sayur dinilai berdasarkan skor frekuensi, sedangkan status gizi ditentukan menggunakan Indeks Massa Tubuh menurut Umur. Hasil menunjukkan 62,1% anak memiliki konsumsi sayur rendah, 27,6% sedang, dan 10,3% tinggi. Status gizi terdiri atas 44,8% normal, 24,1% kurus atau sangat kurus, dan 31,0% gizi lebih atau obesitas. Uji *Fisher-Freeman-Halton* menunjukkan tidak terdapat hubungan signifikan antara konsumsi sayur dan status gizi (p=0,755). Regresi logistik ordinal juga menunjukkan hasil tidak signifikan setelah dikontrol karakteristik responden (OR=0,54; 95% CI=0,21–1,35; p=0,185). Temuan ini menunjukkan bahwa konsumsi sayur belum terbukti berhubungan dengan status gizi anak, sehingga status gizi perlu dipahami sebagai hasil interaksi berbagai faktor pola makan dan keluarga. 
Co-Authors Andi Laila Nugrawati Baihaqi Fatahu, Fatahu Ika Rezvani Ika Rezvani Aprita Rhenislawaty Sri Agustina Windayani