The authors are grateful to the Foundation for Science
and Technology (FCT, Portugal) for financial support
through national funds FCT/MCTES (PIDDAC) to CIMO (UIDB/00690/2020 and UIDP/00690/2020) and
SusTEC (LA/P/0007/2020). Ana Sofia Brandão and José
M. R. C. A. Santos would like to thank the FEDER
under Programme PT2020 for financial support to
INTERREG POCTEP project “INBEC—Circular bioeconomy. Promotion and development of a sustainable
economy through innovation and business cooperation”
(ref. 0627_INBEC_6_E). Maria Inês Dias and Lillian
Barros would like to thank the national funding by FCT,
Paula Rodrigues, through the institutional scientific
employment program‐contract for their contracts; to
the project Healthy—PETFOOD for the contract of
Cristina Caleja (POCI‐01‐0247‐FEDER‐047073). This
work is funded by the European Regional Development
Fund (ERDF) through the Regional Operational Pro-
gram North 2020, within the scope of Project
GreenHealth—Digital strategies in biological assets to
improve well‐being and promote green health, Norte‐01‐0145‐FEDER‐000042.
Waste recovery, in a circular economy context, is associated with clear economic and
environmental benefits. Although apple pomace has been extensively studied for many
applications, the valorization of pomace from emerging craft cider production is a
novelty. This work is intended to determine the nutritional value, chemical
composition, and phenolic and mineral profiles of pomace from craft cider waste.
Levels of moisture (79.3%) and sugar contents (54.0%) stand out in their composition.
Ethanol (1.56%) has been identified. Also, malic acid (2.94%), as well as α‐tocopherols
(0.4 mg/100 g) were detected. The phenolic profile showed six flavonoid compounds
identified mainly quercetin derivatives. The mineral analysis revealed potassium as the
major constituent (58.5 mg/g). In conclusion, it is envisaged that cider pomace could be
an ideal substrate for biotechnological purposes, particularly as a sustainable and
alternative, cheap source to produce glycerol for application in various industries such
as food, cosmetics, and pharmaceuticals.
