Table 3 Comparison of the organic acid contents on the juices and vinegars of Elaeagnus multiflora fruit

Contents (mg/mL) Samples1)
NHJEM NHVEM HJEM HVEM
Oxalic acid 0.59±0.042)a3) 0.09±0.01c 0.31±0.03b 0.07±0.00c
Tartaric acid 1.87±0.09a 0.42±0.02b 1.70±0.05a 0.59±0.03b
Malic acid 1.54±0.06a 0.33±0.01b 1.19±0.04a 0.88±0.05b
Ascorbic acid 2.56±0.11a 1.61±0.05b 2.41±0.10a 1.80±0.07b
Lactic acid 6.50±0.32a 4.97±0.20b 6.18±0.30a 4.73±0.21b
Acetic acid 2.22±0.09b 23.56±0.94a 1.89±0.08b 21.82±1.00a
Citric acid 0.44±0.01b 0.48±0.02b 0.62±0.02a 0.62±0.02a
Succinic acid 0.13±0.01c 0.35±0.03b 0.60±0.02a 0.72±0.03a
Fumaric acid 0.03±0.00a 0.06±0.01a 0.03±0.00a 0.09±0.02a
Glutaric acid ND4) ND ND ND
Total 13.66±0.55 31.87±1.27 13.04±0.52 31.32±1.25
NHJEM, non-heating juice of Elaeagnus multiflora; NHVEM, non-heating vinegar of Elaeagnus multiflora; HJEM, heating juice of Elaeagnus multiflora ; and HVEM, heating vinegar of Elaeagnus multiflora.
All data are presented as the mean±SD of triplicate determinations.
Means with different lowercase letters (a-c) indicate significant differences of juices and vinegars by Tukey’s multiple range test (p<0.05).
ND, not detected.