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All Journal Al Jahiz: Journal of Biology Education Research
Euis Nursa'adah
University of Bengkulu
Biochemistry, Genetics & Molecular Biology Education Environmental Science Languange, Linguistic, Communication & Media

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Qualitative and Quantitative Detection of Borax in Food Using Butterfly Pea Flower Extract Detty Fitriani; Bhakti Karyadi; Euis Nursa'adah
Al Jahiz Vol 6 No 2 (2025): Al-Jahiz: Journal of Biology Education Research, July-December 2025
Publisher : Fakultas Tarbiyah dan Ilmu Keguruan UIN Jurai Siwo, Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32332/al-jahiz.v6i2.11116

Abstract

The detection of borax in food is of critical importance due to its toxic properties, which pose serious health risks, especially when consumed continuously, even in small amounts. Therefore, an environmentally friendly, accessible, and easy-to-use detection method is needed for broader application, particularly in routine food monitoring. This study introduces a novel quantitative detection approach using butterfly pea flower (Clitoria ternatea L.) extract as a natural indicator, combining visual colorimetry and UV-Vis spectrophotometry for dual-mode borax analysis. Unlike previous studies that focused solely on qualitative color observation, this research establishes a quantitative correlation between absorbance and borax concentration, supported by strong linearity (R² = 0.9942) and high sensitivity (LoD = 0.026 ppm; LoQ = 0.088 ppm). The butterfly pea extract, rich in anthocyanins, produced a distinct blue color that shifted to green upon interaction with borax, forming a specific butterfly pea–borax complex with a maximum wavelength (λmax) at 624 nm. Application to real meatball samples revealed borax contents of 0.528% and 0.4641% in two samples, respectively. The integration of butterfly pea extract with turmeric paper as a dual-confirmation system enhances analytical reliability while maintaining cost-effectiveness and environmental safety. This work contributes a validated, eco-friendly, and quantitative natural detection method that bridges the gap between laboratory precision and community-based food safety monitoring.
Seafood Innovation Processing Octopus into Flour and Proximate Composition Analysis as Highly Nutritious Food Ayu Shinka Permata Sari; Bhakti Karyadi; Euis Nursa'adah; Nurhamidah; Rendy Wikrama Wardana; Indarini Dwi Pursitasari
Al Jahiz Vol 7 No 1 (2026): Al-Jahiz: Journal of Biology Education Research, January-June 2026 (In Progress)
Publisher : Fakultas Tarbiyah dan Ilmu Keguruan UIN Jurai Siwo, Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32332/al-jahiz.v7i1.11202

Abstract

Kaur Regency has abundant marine resources, particularly Octopus vulgaris. According to data from the local Fisheries Service, octopus production in 2023 reached 349,310 kg. However, utilization remains limited to dried products. An alternative innovation is processing octopus into flour, which offers high nutritional value, longer shelf life, and broader applications as a raw material for various food products. This study aimed to produce octopus flour and analyze its proximate composition. Fresh octopus samples were selected, cleaned, boiled, sliced, and sun-dried until completely dehydrated. The dried material was then ground into powder and stored in airtight containers. Proximate and mineral analyses were conducted at the Biology Laboratory, University of Bengkulu, following SNI 01-2715-1996 standards. The macronutrient analysis showed that fat content was 8.19%, meeting SNI Class II standards (<10%). Protein content reached 32.41%, while carbohydrate content was 7.08%. For micronutrients, calcium content was 0.15%, meeting SNI Class I standards (>0.1%), magnesium content was 0.87%, and iron content was 5,412 ppm. Additional nutritional analysis indicated moisture content of 1.96%, fiber content of 0.73%, and ash content of 4.2%, all complying with SNI Class I criteria. In conclusion, octopus flour produced from local resources meets SNI Class I and II standards for macronutrients, micronutrients, and other nutritional parameters, demonstrating its potential as a nutritious and durable alternative food ingredient.
Co-Authors Ayu Shinka Permata Sari Bhakti Karyadi Detty Fitriani Indarini Dwi Pursitasari Nurhamidah Rendy Wikrama Wardana