We present the fifth release of the UMIST Database for Astrochemistry (UDfA). The new
reaction network contains 6173 gas-phase reactions, involving 467 species, 47 of which are
new to this release. We have updated rate coefficients across all reaction types. We have
included 1171 new anion reactions and updated and reviewed all photorates. In addition to
the usual reaction network, we also now include, for download, state-specific deuterated rate
coefficients, deuterium exchange reactions and a list of surface binding energies for many�…

Colour is an important quality attribute in the food and bioprocess industries, and it
influences consumer's choice and preferences. Food colour is governed by the chemical,
biochemical, microbial and physical changes which occur during growth, maturation,
postharvest handling and processing. Colour measurement of food products has been used
as an indirect measure of other quality attributes such as flavour and contents of pigments
because it is simpler, faster and correlates well with other physicochemical properties. This�…