Physically cross-linked aerogels based on germinated and non-germinated wheat starch and PEO for application as water absorbers for food packaging

Silva, Francine Tavares da; Oliveira, Jean Paulo de; Fonseca, Laura Martins; Bruni, Graziella Pinheiro; Zavareze, Elessandra da Rosa; Dias, Álvaro Renato Guerra

doi:10.1016/j.ijbiomac.2020.03.123

Cited by 38 publications

(18 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Higher retrogradation can result in a firmer and stronger gel structure, increasing the hardness. Silva et al (2020) elaborated aerogels with wheat starch, and reported a higher hardness of 11 366.08 g, lower springiness and cohesiveness of 0.42 and 0.39, respectively, when compared to this study.…”

Section: Resistance To Compressioncontrasting

confidence: 44%

“…The avocado seed starch‐based aerogel was done according to Silva et al . (2020). Briefly, 10 g of starch and 100 mL of distilled water were gelatinised at 90 °C for 1 h. The gel was placed in moulds (20 × 10 mm, diameter × height) and kept at room temperature (20 °C ± 2) for 6 h before the freezing–thawing cycles.…”

Section: Methodsmentioning

confidence: 99%

“…Using starch for aerogel development can lead to a moisture‐absorbing material for food packaging applications. Another advantage of using starch in aerogels is that they are recognised as a safe ingredient for human ingestion (Silva et al ., 2020). Aerogels have a large surface area, high porosity, low density and good mechanical strength.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Extraction and characterisation of avocado seed starch (Persea americana Miller) and application in aerogels

Frasson,

Nunes,

Biduski

et al. 2023

Int J of Food Sci Tech

View full text Add to dashboard Cite

SummaryAvocado seed (Persea americana Miller) is a by‐product of fruit processing and is considered a potential alternative source of starch. The use of starches from unconventional sources can be an alternative to replace modified starches as a functional ingredient in food systems. This study aimed to extract and characterize starch from avocado seed varieties Fortuna and Hass and produce aerogels. Starches were characterized by physical, chemical, thermal, and morphological properties. The aerogels were produced by physical crosslinking and evaluated for water absorption capacity and physical properties. The starch extraction yield was 12%, and the granules had oval and spherical morphology. Amylose content ranged from 41.95% to 49.46%, and relative crystallinity from 22% to 25% for Hass and Fortuna, respectively. The Fortuna starch showed higher pasting temperature, peak viscosity, peak time, and final viscosity values. Aerogels had excellent structural characteristics and had not deformed after 24 hours of hydration; the Fortuna starch aerogels showed higher water absorption and mechanical resistance. The properties of avocado seed starch indicate a vast potential for application in food industries and for developing biodegradable packaging with excellent physical properties and excellent water retention capacity.

show abstract

Section: Resistance To Compressioncontrasting

confidence: 44%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Extraction and characterisation of avocado seed starch (Persea americana Miller) and application in aerogels

Frasson,

Nunes,

Biduski

et al. 2023

Int J of Food Sci Tech

View full text Add to dashboard Cite

show abstract

“…According to Silva et al. (2020), the greater the RC values, the greater the resistance of a polymer, due to the entanglement of the macromolecules.…”

Section: Resultsmentioning

confidence: 99%

Pinhão coat extract encapsulated in starch ultrafine fibers: Thermal, antioxidant, and antimicrobial properties and in vitro biological digestion

Cruz

Fonseca

Radünz

et al. 2021

Journal of Food Science

Self Cite

View full text Add to dashboard Cite

This study aimed to produce soluble potato starch ultrafine fibers for the encapsulation of pinhão coat extract (PCE), evaluating their relative crystallinity (RC), thermal stability, antioxidant activity, antimicrobial activity against Escherichia coli and Staphylococcus aureus, as well as in vitro biological digestion. In the simulation of in vitro biological digestion, the phenolic compounds release profile was also evaluated. The ultrafine fibers were produced by electrospinning, based on a polymeric solution composed of soluble potato starch (50% w/v) and formic acid. Then, PCE was incorporated at various concentrations (0.5%, 1.0%, and 1.5%, w/w, dry basis). The endothermic event of free PCE was not observed in the ultrafine fibers, which suggests its encapsulation. The RC decreased according to the increase in PCE concentration in the ultrafine fibers. The PCE resisted thermal treatments when encapsulated into the ultrafine fibers (100 and 180°C), and the ultrafine fibers with 1% PCE presented the highest amount of preserved phenolic compounds. Regarding antioxidant activity, the free PCE presented 85% of DPPH inhibition and the ultrafine fibers had 18% inhibition, not differing among the PCE concentrations (p < 0.05). The free PCE and the ultrafine fibers with 0.5% PCE showed inhibitory effect against S. aureus and the ones with 1.5% PCE showed controlled release of phenolic compounds during the simulation of in vitro digestion. Starch ultrafine fibers showed potential to be applied in food industries due to their capacity of protecting phenolic compounds when submitted to high temperatures or gastrointestinal conditions. Nevertheless, their application depends on the end use of the product. Practical Application The encapsulation of pinhão coat extract (PCE) in ultrafine starch fibers promotes greater preservation of phenolic compounds. Thus, it can be incorporated into different foods that are produced using the ultra‐high temperature (UHT) process—at 135–145°C for 5 to 10 s, or some other equivalent time/temperature combination. Another possibility is the incorporation of ultrafine fibers in active packaging: compounds can migrate to food, improving sensory characteristics, increasing shelf life, preventing chemical and microbiological deterioration, and ensuring food safety.

show abstract

“…Silica aerogels (SAs) are highly porous nanomaterials with extremely low densities, high specific surface areas and high porosities [1]. Due to these properties, SAs have various potential applications, e.g., drug delivery systems [2], energy storage systems [3], cosmic dust capture [4], paints [5], food packaging [6], and insulation in buildings [7]. Despite the advantages of SAs, there are still some practical limitations.…”

Section: Introductionmentioning

confidence: 99%

Effect of sodium bicarbonate solution on methyltrimethoxysilane-derived silica aerogels dried at ambient pressure

Liu

Han

Kuerbanjiang

et al. 2021

Front. Chem. Sci. Eng.

View full text Add to dashboard Cite

Here we present an economical ambient pressure drying method of preparing monolithic silica aerogels from methyltrimethoxysilane precursor while using sodium bicarbonate solution as the exchanging solvent. We prepared silica aerogels with a density and a specific surface area of 0.053 g·cm−3 and 423 m2·g−1, respectively. The average pore diameter of silica aerogels is 23 nm as the pore specific volume is 1.11 cm3·g−1. Further, the contact angle between water droplet and the surface of silica aerogels in specific condition can be as high as 166°, which indicates a super-hydrophobic surface of aerogels.

show abstract

Physically cross-linked aerogels based on germinated and non-germinated wheat starch and PEO for application as water absorbers for food packaging

Cited by 38 publications

References 38 publications

Extraction and characterisation of avocado seed starch (Persea americana Miller) and application in aerogels

Extraction and characterisation of avocado seed starch (Persea americana Miller) and application in aerogels

Pinhão coat extract encapsulated in starch ultrafine fibers: Thermal, antioxidant, and antimicrobial properties and in vitro biological digestion

Effect of sodium bicarbonate solution on methyltrimethoxysilane-derived silica aerogels dried at ambient pressure

Contact Info

Product

Resources

About