Jurnal+uji+molisch+karbohidrat+patched May 2026
The Molisch test serves as a general preliminary screening for carbohydrates. A positive result indicates that a substance contains a carbohydrate component, though it does not distinguish between specific types like glucose, fructose, or starch. 2. Principles of the Reaction
Penggunaan asam sulfat pekat sangat krusial karena kekuatannya dalam menarik molekul air dari struktur gula. Tanpa dehidrasi yang sempurna, pembentukan furfural tidak akan terjadi, sehingga reaksi kondensasi dengan alfa-naftol gagal dilakukan. Penerapan dalam Penelitian Pangan jurnal+uji+molisch+karbohidrat+patched
2. Abstract (150–250 words)
- Background: Molisch test is a general test for carbohydrates using α-naphthol and concentrated H₂SO₄.
- Objective: To adapt the Molisch test for patched samples (e.g., food spots, dried extracts, or surface swabs on filter paper).
- Methods: Samples were applied as a small patch on filter paper, followed by α-naphthol reagent and acid. Color development was observed.
- Results: Positive results (purple ring) were obtained with all tested carbohydrates (glucose, sucrose, starch) but not with non-carbohydrates.
- Conclusion: The patched method is simple, sample-saving, and suitable for field or preliminary testing.
- Sampel yang diduga mengandung karbohidrat
- Asam sulfat (H2SO4)
- α-naphtol
- Etanol (C2H5OH)
- Pipet
- Tabung reaksi
- Pengaduk
