Table 1.

The influence of heat treatment on Ara h 1 solubility and colour changes

	C37 °C	G37 °C	C60 °C	G60 °C	C145 °C	G145 °C
Solubility (%)	99 ± 0.5	97 ± 0.7	87 ± 2.5	59 ± 7.2	68 ± 9.3	8.3 ± 1.4
p value	>0.05	>0.05	<0.05	<0.05	<0.05	<0.05
Colour visually	Transparent	Transparent	Transparent	Light brown	Light brown	Brown
Abs. λ = 420 nm	0	0	0	0.1 ± 0.02	0.02 ± 0.00	0.3 ± 0.11

Average percentage of solubility of two heating-treatments performed independently ± SD. C control sample, Ara h 1 treated without glucose; G glycation, Ara h 1 treated with the presence of glucose