PMID- 37689919
OWN - NLM
STAT- MEDLINE
DCOM- 20230911
LR  - 20230911
IS  - 1873-7145 (Electronic)
IS  - 0963-9969 (Linking)
VI  - 172
DP  - 2023 Oct
TI  - Alternative flexible plastic packaging for instant coffees.
PG  - 113165
LID - S0963-9969(23)00710-X [pii]
LID - 10.1016/j.foodres.2023.113165 [doi]
AB  - Instant coffees are consumed worldwide and their packages must protect them 
      mainly from moisture gain. Flexible packaging stand-up pouches made by PET/Al 
      foil/LDPE are currently used but, the look for alternative materials is 
      interesting to replace the aluminum foil with reducing costs and focusing on 
      sustainability. Therefore, the aim of this study was to evaluate the quality loss 
      of freeze-dried and spray-dried (agglomerated and powder) instant coffees during 
      365 days at 25  degrees C/75% RH, packaged in five plastic structures: PET (polyethylene 
      terephthalate)/Al (aluminum) foil/LDPE (low density polyethylene), LDPE/HDPE 
      (high density polyethylene)/LDPE, BOPP (biaxially oriented polypropylene)/BOPP 
      met (metallized)/PP, PET/PET met/LDPE and PET/BOPP met/LDPE. The results were 
      compared with the shelf-life estimated by modeling the moisture sorption 
      isotherms of the products by mathematical models. Results indicated that the 
      lower the barrier to water vapor of the packaging material, the greater the gains 
      in moisture and water activity of the instant coffees and in addition to being 
      thermally less stable. After 365 days of storage, the three soluble coffees still 
      had acceptable characteristics in the five packaging structures, indicating that 
      it is possible to replace the currently used laminate, which contains aluminum 
      foil, with recyclable structures. However, the greatest stability for the coffees 
      was obtained using the alternative structures: BOPP/BOPP met/PP and 
      LDPE/HDPE/LDPE, a result that was in concordance with that obtained by 
      mathematical modeling.
CI  - Copyright (c) 2023 Elsevier Ltd. All rights reserved.
FAU - Massulo Souza, Raquel
AU  - Massulo Souza R
AD  - Packaging Technology Center, Cetea, Institute of Food Technology, Ital, Campinas, 
      Sao Paulo, Brazil. Electronic address: raquel.souza@ital.sp.gov.br.
FAU - Moreira, Christiane Quartaroli
AU  - Moreira CQ
AD  - Packaging Technology Center, Cetea, Institute of Food Technology, Ital, Campinas, 
      Sao Paulo, Brazil.
FAU - Vieira, Ronierik Pioli
AU  - Vieira RP
AD  - School of Chemical Engineering (FEQ), Department of Bioprocess and Materials 
      Engineering (DEMBio), University of Campinas, Unicamp, Campinas, Sao Paulo, 
      Brazil.
FAU - Coltro, Leda
AU  - Coltro L
AD  - Packaging Technology Center, Cetea, Institute of Food Technology, Ital, Campinas, 
      Sao Paulo, Brazil.
FAU - Alves, Rosa Maria Vercelino
AU  - Alves RMV
AD  - Packaging Technology Center, Cetea, Institute of Food Technology, Ital, Campinas, 
      Sao Paulo, Brazil.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20230619
PL  - Canada
TA  - Food Res Int
JT  - Food research international (Ottawa, Ont.)
JID - 9210143
RN  - 9002-88-4 (Polyethylene)
RN  - 0 (Coffee)
RN  - 0 (Plastics)
RN  - CPD4NFA903 (Aluminum)
SB  - IM
MH  - *Polyethylene
MH  - *Coffee
MH  - Plastics
MH  - Aluminum
MH  - Product Packaging
OTO - NOTNLM
OT  - Mathematical modeling
OT  - Moisture sorption isotherms
OT  - Shelf-life
OT  - Soluble coffee
OT  - WVTR
COIS- Declaration of Competing Interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2023/09/10 06:41
MHDA- 2023/09/11 06:43
CRDT- 2023/09/10 01:01
PHST- 2023/04/10 00:00 [received]
PHST- 2023/06/13 00:00 [revised]
PHST- 2023/06/16 00:00 [accepted]
PHST- 2023/09/11 06:43 [medline]
PHST- 2023/09/10 06:41 [pubmed]
PHST- 2023/09/10 01:01 [entrez]
AID - S0963-9969(23)00710-X [pii]
AID - 10.1016/j.foodres.2023.113165 [doi]
PST - ppublish
SO  - Food Res Int. 2023 Oct;172:113165. doi: 10.1016/j.foodres.2023.113165. Epub 2023 
      Jun 19.