Natural gums as corrosion inhibitor: A review

Kumar, Akshay; Kumar, Jitendra; Nishtha,

doi:10.1016/j.matpr.2022.04.073

Cited by 8 publications

(6 citation statements)

References 43 publications

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“…Recently, diverse polymeric matrices have been used to encapsulate biocompounds, among which gum arabic and maltodextrin stand out due to their better behavior at the nanoscale level [ 19 , 20 , 21 , 22 , 23 ]. Gum arabic is extracted from the trees of Acacia senegal L. [ 24 ]; which is considered a food biopolymer with a rather complex chemical structure, in which the presence of various carbohydrates predominates, giving it good emulsifying properties and low viscosity in water [ 25 , 26 ], which is why it has been used in nano spray drying processes in recent years [ 27 , 28 ]. Regarding maltodextrin, it is a substance obtained from the hydrolysis of starches from different sources, which, when they have a high dextrose equivalence, are characterized by high solubility in aqueous media, low viscosity, tasteless flavor, and are considered excellent encapsulants that could be acquired at relatively low prices [ 7 , 19 , 29 ].…”

Section: Introductionmentioning

confidence: 99%

Obtaining and Characterizing Andean Multi-Floral Propolis Nanoencapsulates in Polymeric Matrices

Ligarda-Samanez

Choque-Quispe

Moscoso-Moscoso

et al. 2022

Foods

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Propolis is a substance with significant anti-inflammatory, anticancer, and antiviral activity, which could be used more efficiently at the nano level as an additive in the food industry. The aim was to obtain and characterize nanoencapsulated multi-floral propolis from the agro-ecological region of Apurimac, Peru. For nanoencapsulation, 5% ethanolic extracts propolis with 0.3% gum arabic and 30% maltodextrin were prepared. Then, the mixtures were dried by nano spraying at 120 °C using the smallest nebulizer. The flavonoid content was between 1.81 and 6.66 mg quercetin/g, the phenolic compounds were between 1.76 and 6.13 mg GAE/g, and a high antioxidant capacity was observed. The results of moisture, water activity, bulk density, color, hygroscopicity, solubility, yield, and encapsulation efficiency were typical of the nano spray drying process. The total organic carbon content was around 24%, heterogeneous spherical particles were observed at nanometer level (between 11.1 and 562.6 nm), with different behaviors in colloidal solution, the thermal gravimetric properties were similar in all the encapsulates, the FTIR and EDS analysis confirmed the encapsulation and the X-ray diffraction showed amorphous characteristics in the obtained material; stability and phenolic compound release studies indicated high values of 8.25–12.50 mg GAE/g between 8 and 12 h, the principal component analysis confirmed that the flora, altitude, and climate of the propolis location influenced the content of bioactive compounds, antioxidant capacity, and other properties studied. The nanoencapsulate from the district of Huancaray was the one with the best results, allowing its future use as a natural ingredient in functional foods. Nevertheless, technological, sensory, and economic studies should still be carried out.

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Section: Introductionmentioning

confidence: 99%

Obtaining and Characterizing Andean Multi-Floral Propolis Nanoencapsulates in Polymeric Matrices

Ligarda-Samanez

Choque-Quispe

Moscoso-Moscoso

et al. 2022

Foods

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“…It is worth noting that drugs usually detain the major structural aspects desired to achieve high corrosion inhibition potentials, such as heteroatoms and balance between hydrophobic and hydrophilic groups. Additionally, amino acids, natural extracts, carbohydrates, polymers, and gums are possible green chemistry solutions as organic compounds against corrosion (Figure 2) [8,14,[28][29][30][31][32][33][34][35]. Moreover, macrocyclic compounds are a particularly interesting class of organic molecular motifs.…”

Section: Organic Molecules In the Corrosion Inhibition Processmentioning

confidence: 99%

Synthetic Organic Molecules as Metallic Corrosion Inhibitors: General Aspects and Trends

Lessa

2023

Organics

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Organic molecules are gaining special attention over the last years in the corrosion area thanks to their general low achievable cytotoxicity, structural versatility, and environmentally friendly obtainment methods. Under those approaches, synthetic organic motifs have attracted the interest of researchers due to their variated methods of obtention through molecular manipulation via diverse chemical reactions, allowing the production of adequately planned structures or repurposing their original application in the case of drugs. This review summarizes general aspects that are desired in organic molecules as corrosion inhibitors, presenting selected works published in the 2022–2023 period and emphasizing the importance of finding novel and different organic corrosion inhibitors. Patents were not considered in this review. Scifinder, Google Scholar, and Web of Science were employed as databases. Mathematical and analytical methods involved in the search for corrosion inhibitors are out of this review’s scope.

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“…Currently, mixtures of gum arabic and maltodextrin are being used in the nanoencapsulation of various compounds [ 17 , 18 , 19 , 20 , 21 ]. Gum arabic is obtained from Acacia senegal L. [ 22 ] and is an emulsifying biopolymer with low aqueous viscosity [ 23 , 24 ], so it is being used in nano spray-drying processes [ 25 , 26 ]. Maltodextrin is obtained from starch hydrolysis, is water soluble, tasteless, has low viscosity, and is available at affordable prices [ 17 , 27 , 28 ].…”

Section: Introductionmentioning

confidence: 99%

Nanoencapsulation of Phenolic Extracts from Native Potato Clones (Solanum tuberosum spp. andigena) by Spray Drying

Ligarda-Samanez,

Choque-Quispe,

Moscoso-Moscoso

et al. 2023

Molecules

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Native potato clones grown in Peru contain bioactive compounds beneficial to human health. This study aimed to optimize the spray-drying nanoencapsulation of native potato phenolic extracts utilizing a central composite design and response surface methodology, obtaining the optimal treatment to an inlet temperature of 120 °C and an airflow of 141 L/h in the nano spray dryer B-90, which allowed maximizing the yield of encapsulation, antioxidant capacity (DPPH), encapsulation efficiency (EE), total phenolic compounds, and total flavonoids; on the other hand, it allowed minimizing hygroscopicity, water activity (Aw), and moisture. Instrumental characterization of the nanocapsules was also carried out, observing a gain in lightness, reddening of the color, and spherical nanoparticles of heterogeneous size (133.09–165.13 nm) with a negative ζ potential. Thermal, infrared, and morphological analyses confirmed the encapsulation of the core in the wall materials. Furthermore, an in vitro release study of phenolic compounds in an aqueous solution achieved a maximum value of 9.86 mg GAE/g after 12 h. Finally, the obtained nanocapsules could be used in the food and pharmaceutical industry.

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Natural gums as corrosion inhibitor: A review

Cited by 8 publications

References 43 publications

Obtaining and Characterizing Andean Multi-Floral Propolis Nanoencapsulates in Polymeric Matrices

Obtaining and Characterizing Andean Multi-Floral Propolis Nanoencapsulates in Polymeric Matrices

Synthetic Organic Molecules as Metallic Corrosion Inhibitors: General Aspects and Trends

Nanoencapsulation of Phenolic Extracts from Native Potato Clones (Solanum tuberosum spp. andigena) by Spray Drying

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