2 shows the amount of total phenolics (TPs) in
various processed tomatoes. The fresh-SN and ITH
tomatoes contained the lowest TPs content as compared
to their respective processed ones. The amounts of TPs
in FD-SN and FD-ITH increase 2.6% and 5.9%, respectively
to their respective fresh ones. Whereas, the TPs in
AD-SN and AD-ITH increase 13% and 29%, respectively.
Although Dewanto et al. (2002) had reported that
the content of TPs did not change significantly during
thermal processing of tomatoes. In contrast, our results
showed a significant increase in TPs either through FD
or AD processing. It is possibly due to the liberation
of phenolic compounds from the matrix during the process.
Chism and Haard (1996) has mentioned that fruits
and vegetables normally contain high contents of phenolic
compounds in the outer parts, in other words,
TPs including all the phenolic acid compounds occur
in plants as the metabolic intermediates and usually
accumulate in the vacuoles. It is assumed that food
processes might accelerate more bound phenolic
compounds releasing from the breakdown of cellular
2 shows the amount of total phenolics (TPs) invarious processed tomatoes. The fresh-SN and ITHtomatoes contained the lowest TPs content as comparedto their respective processed ones. The amounts of TPsin FD-SN and FD-ITH increase 2.6% and 5.9%, respectivelyto their respective fresh ones. Whereas, the TPs inAD-SN and AD-ITH increase 13% and 29%, respectively.Although Dewanto et al. (2002) had reported thatthe content of TPs did not change significantly duringthermal processing of tomatoes. In contrast, our resultsshowed a significant increase in TPs either through FDor AD processing. It is possibly due to the liberationof phenolic compounds from the matrix during the process.Chism and Haard (1996) has mentioned that fruitsand vegetables normally contain high contents of phenoliccompounds in the outer parts, in other words,TPs including all the phenolic acid compounds occurin plants as the metabolic intermediates and usuallyaccumulate in the vacuoles. It is assumed that foodprocesses might accelerate more bound phenoliccompounds releasing from the breakdown of cellular
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