Sucrose was measured using a Waters 600E high-performance
liquid chromatograph (Millipore, UK) [28]. A carbohydrate column
and a 2410 refractive index monitor were used. The mobile phase
used was 75% acetonitrile and ultra water (75:25). The mobile rate
and temperature of the column were set at 1.0 mL min−1 and 35 ◦C,
respectively. Water Millennium software (Millipore, UK) was used
to manage the data.