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Table 1 Total carbohydrate and AsA content of Curcubitaceae fruit vascular exudates

From: Synthesis of L-ascorbic acid in the phloem

Species

Carbohydrate (mg gFW-1)

AsA (mg gFW-1)

AsA (mM)

Cucumis sativus

10.95 ± 0.13

1.02 ± 0.05

5.8 ± 0.33

Cucurbita maxima

22.48 ± 0.09

1.44 ± 0.04

8.2 ± 0.20

C. moschata

21.98 ± 0.80

0.49 ± 0.03

2.8 ± 0.15

C. pepo (courgette)

17.96 ± 0.34

0. 87 ± 0.05

4.9 ± 0.26

C. pepo (squash)

20.46 ± 0.53

0.81 ± 0.02

4.6 ± 0.13

C. maxima x C. moschata

23.28 ± 0.66

0.63 ± 0.02

3.6 ± 0.09

  1. Mean ± S.E. n = 3 Samples were extracted in 5% H3PO3 (w/v) containing 5 mM TCEP and carbohydrate concentration estimated according to Dubois et al. (1956). AsA concentration was estimated by HPLC.