Quinoa starch nanocrystals production by acid hydrolysis: Kinetics and properties

Velásquez-Castillo, Lía Ethel; Leite, Mariani Agostinetto; Ditchfield, Cynthia; Sobral, Paulo José do Amaral; Moraes, Izabel Cristina Freitas

doi:10.1016/j.ijbiomac.2019.12.011

Cited by 59 publications

(35 citation statements)

References 42 publications

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“…They all presented type A diffraction patterns and, after the treatments, produced nanostructures that maintained the same pattern as the original starch diffractogram. Similar behavior has been reported for type A starches with regular levels of amylose (15% to 30%) such as corn; [28,48] mango seed, [28] quinoa [29] and cassava. However, from regular rice starch (type A) nanoparticles with type A + V crystallinity pattern were obtained, [54] and the emergence of type V (2𝜃-7.3°and 12.8°) was related to the (i) amylose lipid complex naturally present in native starch, being evident by the increase in the relative concentration after hydrolysis and/or (ii) complexation of the long B chains of amylopectin, released by hydrolysis, which has the ability to form inclusion complexes.…”

Section: X-ray Diffraction Pattern and Relative Crystallinitysupporting

confidence: 79%

“…These parameters have been used (Table 1) in several studies on the production of starch nanocrystals from different botanical sources. [8,9,[14][15][16]28,29] Industrial interest in the production and application of starch nanocrystals can be associated to the increased number of scientific papers in 2019 (Tables 1-3) and by patents from 2015 onwards. We can mention the following patents:…”

Section: Timelinementioning

confidence: 99%

“…Xu et al [52] observed that different botanical sources (corn, tapioca, mungbean, potato, barley and chickpea) presented nanocrystals in the range of 25.5 to 117.1 nm, which may be influenced by the crystalline pattern or by the amylose content of native starches. Velázquez-Castillo et al, [29] when studying the effect of temperature on the production of quinoa starch nanocrystals, observed that the increase of temperature (30 °C to 40 °C) allowed the production of smaller particles (from 1056.7 to 243.4 nm). The effect of the amount of acid solution (HCl) on the average diameter of starch particles was evaluated by Choi et al: [50] the increase of the acid volume (0.4 to 2 mL) reduced the diameter of the starch nanocrystals.…”

Section: Particle Sizementioning

confidence: 99%

“…[58] However, the pattern A has also been reported for cassava starch. [48,59,60] Waxy corn starches [8,11,26,29,40] and rice [54] were hydrolyzed HCl or H 2 SO 4 , and waxy corn was hydrolyzed with oxalic acid at 130°C (15 h). They all presented type A diffraction patterns and, after the treatments, produced nanostructures that maintained the same pattern as the original starch diffractogram.…”

Section: X-ray Diffraction Pattern and Relative Crystallinitymentioning

confidence: 99%

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From Micro to Nanoscale: A Critical Review on the Concept, Production, Characterization, and Application of Starch Nanostructure

et al. 2021

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Evaluation of nanoparticles obtained from starch is still on a laboratory scale and many challenges need to be overcome up to the industrial scale. In this review, information about the study and development of nanostarches are reported based on a discussion of concepts, production methods, as well as physico-chemical and technological characterization, safety and applications. The usual methods of producing nanostarches (such as acid hydrolysis, enzymatic pretreatment, high pressure homogenization and ultrasound) are discussed in this review, as well as the advancement of applications in the food industry (as in Pickering emulsion, carriers, films and nanocomposite production). Due to the wide variety of data, a protocol for the analysis of starch nanostructures is suggested. However, methods for quantifying starch nanoparticles are based on yield by weight, and no quantification method has yet been presented for processed products. All reports present a promising future for several areas, both in research and industrial applications, as they are considered as open doors to the many challenges on this research area.

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Section: X-ray Diffraction Pattern and Relative Crystallinitysupporting

confidence: 79%

Section: Timelinementioning

confidence: 99%

Section: Particle Sizementioning

confidence: 99%

Section: X-ray Diffraction Pattern and Relative Crystallinitymentioning

confidence: 99%

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From Micro to Nanoscale: A Critical Review on the Concept, Production, Characterization, and Application of Starch Nanostructure

et al. 2021

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“…Several methods were reported to prepare SNPs including; high-pressure homogenization, [22][23][24] ultra-sonication, [25][26][27] extrusion, 28 gamma radiation, 29 dialysis technique, 30 acid hydrolysis, [31][32][33] and nanoprecipitation. [34][35][36][37][38][39][40] Recently, it was reported that the combination of these methods afforded nanoparticles with more desirable properties.…”

Section: Introductionmentioning

confidence: 99%

Starch Nanoparticles for Enhancement of Oral Bioavailability of a Newly Synthesized Thienopyrimidine Derivative with Anti-Proliferative Activity Against Pancreatic Cancer

Gardouh¹,

El-Din²,

Salem³

et al. 2021

DDDT

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This research aimed to improve water solubility and oral bioavailability of a newly synthesized thienopyrimidine derivative (TPD) with anti-pancreatic cancer activity by loading on starch nanoparticles (SNPs). Methods: TPD was synthesized, purified and its ADME behavior was predicted using Swiss ADME software. A UV spectroscopy method was developed and validated to measure TPD concentration at various dosage forms. SNPs loaded with TPD (SNPs-TPD) were prepared, characterized for particle size, polydispersity index, zeta potential, transmission electron microscopy, Fourier transform infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC), entrapment efficiency, in-vitro release, and in-vivo animal study. Results: The Swiss ADME results showed that TPD can be administered orally; however, it has low oral bioavailability (0.55) and poor water solubility. The significant regression coefficient of the calibration curve (r 2 = 0.9995), the precision (%RSD < 0.5%) and the accuracy (99.46−101.72%) confirmed the efficacy of the developed UV method. SNPs-TPD had a spherical monodispersed (PDI= 0.12) shape, nanoparticle size (22.98 ± 4.23) and good stability (−21 ± 4.72 mV). Moreover, FT-IR and DSC revealed changes in the physicochemical structure of starch resulting in SNPs formation. The entrapment efficiency was 97% ± 0.45%, and the in-vitro release showed that the SNPs enhanced the solubility of the TPD. The in-vivo animal study and histopathology showed that SNPs enhanced the oral bioavailability of TPD against solid Ehrlich carcinoma. Conclusion: SNPs-TPD were superior in drug solubility and oral bioavailability than those obtained from TPD suspension.

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Enhancement of polylactic acid films properties by incorporation of starch nanocrystals

Martins

Latorres

Machado

et al. 2022

J of Applied Polymer Sci

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Polylactic acid (PLA) is a biodegradable polymer used in films production; however, it has some limitations. Thus, strategies can be used to improve the characteristics of these materials such as the incorporation of starch nanocrystals (SNCs). Therefore, the aim of this study was to add potato and rice SNCs in PLA matrix in the melt to obtain PLA films with structural reinforcement to improve its properties. The SNCs were produced by acid hydrolysis and incorporated to the matrix in 0.5 and 1 wt% amounts. The films were then produced by bioriented tubular extrusion and characterized with several techniques. Films containing 1 wt% of potato SNCs showed an increase in tensile strength, elongation, and glass transition temperature, but a reduction in water vapor permeability. Therefore, the use of potato SNCs as a structural reinforcement for PLA films improved the properties of the films making them suitable candidates for several other applications.

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Quinoa starch nanocrystals production by acid hydrolysis: Kinetics and properties

Cited by 59 publications

References 42 publications

From Micro to Nanoscale: A Critical Review on the Concept, Production, Characterization, and Application of Starch Nanostructure

From Micro to Nanoscale: A Critical Review on the Concept, Production, Characterization, and Application of Starch Nanostructure

Starch Nanoparticles for Enhancement of Oral Bioavailability of a Newly Synthesized Thienopyrimidine Derivative with Anti-Proliferative Activity Against Pancreatic Cancer

Enhancement of polylactic acid films properties by incorporation of starch nanocrystals

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