Analysis of Formaldehyde in Circulating Grapes in Makassar

Nurfathiyatul Izza, Aminah Aminah, Rais Razak


Formalin or formaldehyde is a chemical compound whose use is prohibited as a preservative in food additives. This study aims to analyze the content of formalin in red grapes (Vitis vinifera) circulating in the city of Makassar. The method used in this test is by using Schiff reagent and UV-Vis spectrophotometry. The results of the Schiff reagent test showed that two of the 10 grape samples were positive for formalin. Test results on UV-Vis Spectrophotometry at a wavelength of 556 nm, that all red grape samples obtained contained formalin with formalin levels as follows: Sample Tamalanrea 1 TD = 0.778%, Tamalanrea 2 TD = 0.483%, Manggala TD= 0.452%, Tamalate TD= 0.734%, Biringkanaya TD= 0.552%, Tamalanrea 1 SD= 0.452%.


Red grapes; Formalin; Schiff reagent; and UV-VIS Spectrophotometry

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Astuti, Pudji, Nora I, Lia D. Validation of Methods for Measuring Humic Acid Levels Extracted from Potassium Hydroxide Using an Ultraviolet Spectrophotometer. JKK. 2016; 5(2): 69-77.

Daelis A, Daramusseng, Hansen. Formaldehyde content in fruit (grapes and apples) and an overview of the seller's knowledge about the use of formaldehyde on Yos Sudarso street, Sangatta city. 2023; 11(1): 105–113.

Junaini MA, Wibowo, Riyanto R. Qualitative Test of Natural Formaldehyde Content in Jambal Catfish (Pangasius djambal) During Cold Storage Using the Antiline Test Kit. J. Kim. Equator. 2016; 5(3): 8–12.

Kiroh NS, Tiwow GA, VI Paat, Ginting AR. Analysis of Formalin in Tofu Circulating in Tomohon Market, Tondano Market and Karombasan Market. Trop. J.Biopharm. 2019; 2(2): 158–169.

Manoppo G, Abidjulu J. Analysis of Formalin on imported fruit in the city of Manado. 2014; 3(3): 148–155.

Mina NM, Sudarti, Yushardi. The Effect of Extremely Low Frequency (ELF) Magnetic Fields on the Capacitance of Red Grapes. J. Educator. Fis. 2018; 3(2): 216–220.

Mudaffar RA. Qualitative and Quantitative Tests of Formalin on Apples, Grapes and Longans Sold in Makassar City. J. Perbal. 2018; 6: 59–65.

Pratiwi D, Wardaniati I, Dewi AP. Reagent Selectivity and Sensitivity Tests for Formalin Detection in Foodstuffs. Indonesian Pharmacy Journal. 2019; 16 (1).

Minister of Health of the Republic of Indonesia. Regulation of the Minister of Health of the Republic of Indonesia Number 033 of 2012 concerning Food Additives, Jakarta, 2012.

Namtini SS, Presiana D, Restiani Y, Nurwanti D. Guidelines for Formaldehyde, Jakarta: BPOM, 2019.

Santoso U, Setyaningsih W, Ningrum A, Ardhi A, Sudarmanto. Food Analysis, Yogyakarta: Gadjah Mada University Press, 2020.



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Laboratory of Pharmaceutical Chemistry, Faculty of Pharmacy
Universitas Muslim Indonesia, Jl. Urip Sumohardjo KM 5 Kampus II, Makassar 90231, Indonesia 

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