Research Article
Determination and Quantification of 5-Hydroxymethylfurfural in Vinegars and Soy Sauces
Table 1
pH value, sugar, and moisture contents in vinegars and soy sauces.
| | Sample | Glucose | Fructose | Sucrose | Maltose | Lactose | pH () | Moisture (%) () | | (%) |
| | Vinegar | | — | — | — | | | | A1 | — | — | — | — | — | | | | A2 | 0.317 | — | — | — | — | | | | A3 | 0.547 | — | — | — | — | | | | A4 | 0.198 | — | — | — | — | | | | A5 | — | — | — | — | — | | | | A6 | 0.126 | — | — | — | — | | | | A7 | 0.262 | — | — | — | — | | | | A8 | 0.990 | 0.293 | — | — | — | | | | A9 | 0.677 | — | — | — | — | | | | A10 | 0.218 | 0.240 | — | — | — | | | | Soy sauce | | | | | | | | B1 | 0.933 | — | — | — | — | | | | B2 | 0.444 | — | — | — | — | | | | B3 | 1.150 | 0.137 | 4.310 | — | — | | | | B4 | 0.372 | — | — | — | — | | | | B5 | 1.180 | 0.628 | 0.273 | — | — | | | | B6 | 1.180 | 0.368 | — | 0.122 | — | | | | B7 | 1.380 | 0.367 | — | — | — | | | | B8 | 0.474 | — | 1.060 | — | — | | | | B9 | 0.662 | — | — | — | — | | | | B10 | 0.636 | — | 1.770 | — | — | | |
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Different letters indicate that there was significant difference between different kinds of vinegar or soy sauce in “pH value” or “moisture contents.”
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