Escalating the technical bounds for the production of cellulose-aided peach leathers: From the benchtop to the pilot plant

Giuliana T Franco; Caio G Otoni; Beatriz D Lodi; Marcos V Lorevice; Márcia R de Moura; Luiz H C Mattoso

doi:10.1016/j.carbpol.2020.116437

Escalating the technical bounds for the production of cellulose-aided peach leathers: From the benchtop to the pilot plant

Carbohydr Polym. 2020 Oct 1:245:116437. doi: 10.1016/j.carbpol.2020.116437. Epub 2020 May 24.

Authors

Giuliana T Franco¹, Caio G Otoni², Beatriz D Lodi³, Marcos V Lorevice⁴, Márcia R de Moura⁵, Luiz H C Mattoso⁶

Affiliations

¹ Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentation, Rua XV de Novembro, 1452, São Carlos, SP 13560-979, Brazil; PPGQ, Department of Chemistry, Federal University of São Carlos, Rod. Washington Luís, km 235, São Carlos, SP 13565-905, Brazil. Electronic address: gtfranco@estudante.ufscar.br.
² Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentation, Rua XV de Novembro, 1452, São Carlos, SP 13560-979, Brazil; Department of Materials Engineering, Federal University of São Carlos, Rod. Washington Luís, km 235, São Carlos, SP 13565-905, Brazil. Electronic address: otoni@unicamp.br.
³ Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentation, Rua XV de Novembro, 1452, São Carlos, SP 13560-979, Brazil. Electronic address: beatrizdlodi@hotmail.com.
⁴ Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentation, Rua XV de Novembro, 1452, São Carlos, SP 13560-979, Brazil. Electronic address: marcos.lorevice@lnnano.cnpem.br.
⁵ Department of Physics and Chemistry, FEIS, São Paulo State University, Av. Brasil, 56, Ilha Solteira, SP 15385-000, Brazil. Electronic address: marcia.aouada@unesp.br.
⁶ Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentation, Rua XV de Novembro, 1452, São Carlos, SP 13560-979, Brazil. Electronic address: luiz.mattoso@embrapa.br.

PMID: 32718594
DOI: 10.1016/j.carbpol.2020.116437

Abstract

This contribution falls within the context of sustainable functional materials. We report on the production of fruit leathers based chiefly on peach pulp, but combined with hydroxypropyl methylcellulose (HPMC) as binding agent and cellulose micro/nanofibrils (CMNF) as fillers. Increased permeability to moisture (from 0.9 to 5.6 g mm kPa^-1 h^-1m^-2) and extensibility (from 10 to 17%) but reduced mechanical resistance (67-2 MPa) and stiffness (1.8 GPa-18 MPa) evidenced the plasticizing effect of peach pulp in HPMC matrix, which was reinforced by CMNF. A ternary mixture design allowed building response surfaces and optimizing leather composition. The laboratory-scale leather production via bench casting was extended to a pilot-scale through continuous casting. The effect of scaling up on the nutritional and sensory features of the peach leather was also depicted. The herein established composition-processing-property correlations are useful to support the large-scale production of peach leather towards applications both as packaging materials and as nutritional leathers.

Keywords: Continuous casting; Edible film; Food packaging; Prunus persica; Response surface methodology; Ternary mixture design.

MeSH terms

Antioxidants / chemistry*
Edible Films*
Fruit / chemistry*
Humidity
Hypromellose Derivatives / chemistry*
Microfibrils / chemistry
Molecular Weight
Permeability
Pilot Projects
Plasticizers / chemistry
Prunus persica / chemistry*

Substances

Antioxidants
Plasticizers
Hypromellose Derivatives