Starch Formation Research Articles

Amorphous packing of amylose and elongated branches linked to the enzymatic resistance of high-amylose wheat starch granules

To elucidate starch structural features underlying resistant starch formation, wheat starch granules with three (A-, B- and C- type) crystalline polymorphisms and a range of amylose contents were digested in vitro. The changes in multi-level structure of digestion residues were compared. In the residues of A- and C-type starches, the molecular fine structure (distributions of chain length and whole molecular size), as analyzed by size exclusion chromatography (SEC), remained similar during digestion. In contrast, B-type high amylose wheat starch (HAWS) showed distinct changes in multi-level structures of digestion-resistant fractions: (1) the peak of longer amylopectin branches shifted to a lower degree of polymerization (40 DP); (2) production of α-limit dextrin (~2 nm hydrodynamic radius) in the residues; (3) a small increase of double helix content during digestion, in contrast to 6 % reduction for the A-type starch; (4) a decrease (6 °C lower) in the melting temperature of amylose-lipid complexes. The comparison suggests that elongated branches in B-type starch contribute to the formation of resistant fraction (including α-limit dextrin) against α-amylase. The amorphous packing of starch polymers with elongated branches together with the absence of surface pores and channels is proposed to be the basis for the enzymatic resistance of granular HAWS.

Bioplastic beads composite production based on cellulose acetate-starch blend: a literature study

Cellulose and starch are two natural biological sources that have potential as bioplastic raw materials. Cellulose and starch show tremendous potential to reduce environmental pollution caused by conventional plastics. The compatibility between the cellulosic fibre matrices plays an important role in the properties of the resulting bioplastic. The modification of cellulose into cellulose acetate makes the resulting bioplastics have better mechanical properties. In addition, bioplastics can be composite with starch to have a stronger matrix. Cellulose-starch bio-composites have also been successfully produced. In this article, the focus on the formulation and characterization of cellulosic fibres and starch concerning their application in bioplastics will be discussed. Then, generalize the development and problems of bioplastics that are composite with starch to improve the mechanical properties of bioplastics.

Characterization of Antimicrobial Composite Edible Film Formulated from Fermented Cheese Whey and Cassava Peel Starch.

Antimicrobial composite edible film can be a solution for environmentally friendly food packaging, which can be made from fermented cheese whey containing an antimicrobial agent and cassava peel waste that contains starch. The research aims to determine the formulation of fermented cheese whey and cassava peel waste starch, resulting in an antimicrobial composite edible film with the best physical, mechanical, and water vapour permeability (WVP) properties, as well as with high antimicrobial activity. This research was conducted using experimental methods with nine composite edible film formulation treatments with three replications. Three variations in the fermented cheese whey and cassava peel starch ratio (v/v) (1:3, 1:1, 3:1) were combined with variations in the addition of glycerol (20%, 33%, 45%) (w/w) in the production of the composite edible film. Then, the physical characteristics such as elongation at break, tensile strength, WVP, colour, and antimicrobial effect of its film-forming solution were observed. The results showed that 24 h of whey fermentation with Candida tropicalis resulted in an 18.50 mm inhibition zone towards Pseudomonas aeruginosa. The best characteristic of the film was obtained from the formulation of a whey:starch ratio of 1:3 and 33% glycerol, which resulted in a thickness value of 0.21 mm, elongation at break of 19.62%, tensile strength of 0.81 N/mm2, WVP of 3.41 × 10−10·g/m·s·Pa at a relative humidity (RH) of 100%–35%, and WVP of 9.84 × 10−10·g/m·s·Pa at a RH of 75%–35%, with an antimicrobial activity towards P. aeruginosa of 5.11 mm.

Foldable/Expandable Gastro-retentive Films Based on Starch and Chitosan as a Carrier For Prolonged Release of Resveratrol.

Resveratrol exerts a number of therapeutic effects, notably antiinflammatory, antioxidant and anti-cancer activities which are beneficial for the treatment of gastric diseases. However, the efficacy of resveratrol is severely limited due to the poor aqueous solubility and rapid metabolism following oral administration. As a result, foldable/expandable devices based on natural polymers merging with solid dispersion technology have been developed to increase the solubility, prolong the gastric residence time, and provide a controlled release therapy of resveratrol. This research aimed to invent foldable/expandable films based on natural polymers, including starch and chitosan, for stomach-specific delivery and prolonged release of resveratrol. The films were prepared by solvent casting using either rice, tapioca, corn starch or pregelatinized corn starch combined with chitosan in different weight to weight ratios. Glycerol was included as a plasticizer. Resveratrol solid dispersions (Res-SD) prepared by solvent evaporation and employing PVP-K30 as a hydrophilic polymer were loaded into the polymeric film, which was subsequently folded prior to insertion in a hard gelatin capsule. The solid dispersions improved the solubility of resveratrol by a factor of 500. All Res-SD loaded film formulations completely unfolded in simulated gastric fluid at 37oC within 10 min. Fluid absorption by the films was influenced by the ratio of amylose and amylopectin in the starch granules, with tapioca starch formulations displaying the highest fluid uptake. Films prepared from pregelatinized corn starch and chitosan resulted in highly efficient delivery of resveratrol, with more than 80%of the content released over a period of 12 hrs. Furthermore, the released polyphenol exhibited cytotoxic activity against human gastric adenocarcinoma cells and anti-inflammatory effects against lipopolysaccharide-stimulated murine, macrophage-like cells. These findings demonstrate the potential of foldable/expandable films based on natural polymers as a promising stomach-specific carrier for improving the treatment of gastric disorders.

Effect of hydrophilic groups in lipids on the characteristics of starch–lipid complexes

SummaryThe complexation of starch and lipids has important implications for food quality, and the interaction is affected by hydrophilic groups in lipids. The complexation interaction of palmitic acid and its common esters with starch was investigated to clarify the influence of the hydrophilicity of polar heads in lipids. The results indicate that the difference in hydrophilic groups affected the characteristics of starch–lipid complexes. The difficulty level of complexation with starch was in the order of palmitic acid > glyceryl monopalmitate > L‐ascorbyl palmitate, with the degree of double helix of the L‐ascorbyl palmitate complex being the lowest. In contrast with palmitic acid, the viscoelasticity of complexes formed by glyceryl monopalmitate and L‐ascorbyl palmitate with a higher number of hydroxyl groups was enhanced and exhibited obvious elastic characteristics. The more intensive complexation interaction caused the more evident changes of the 13C NMR chemical shift attributed to starch. For the complexes of L‐ascorbyl palmitate, glyceryl monopalmitate, and palmitic acid, chemical shift values of carbon at the methylene in glucose units shifted upfield by 0.34, 0.18, and 0.10 ppm, respectively. Hence, hydrophilic groups in lipids significantly affected the formation, structure, and physicochemical properties of starch–lipid complexes.

Transcription Profiling of Rice Panicle in Response to Crude Toxin Extract of Ustilaginoidea virens.

Ustilaginoidea virens infects rice, causing rice false smut disease and reduced yields. During its growth, U. virens can also produce some toxins but less is known about the response mechanisms of the plant to U. virens toxins. U. virens toxins can inhibit the accumulation of total sugar in rice panicles. We used RNA sequencing to analyze the differential expression profile induced by infiltrating crude toxins into early growth-stage rice panicles. We compared the transcriptomes of the control and crude toxin-treated rice panicles and determined variable transcriptional responses under the action of the crude toxins. A total of 6,127 differentially expressed genes (DEGs) were identified. Among these genes, 3,150 were upregulated and 2,977 were downregulated. Gene Ontology (GO) and metabolic pathway enrichment analyses indicated that U. virens toxins mainly influenced glycometabolism, amino acid metabolism, and secondary metabolism of rice panicles. DEG analysis showed that the gene expression levels of 10 transcription factor families were significantly changed. Genes involved in phenylpropanoid biosynthesis, flavonoid biosynthesis, sugar transporters, and starch synthesis-related were significantly downregulated, including cytochrome P450, beta-glucosidase, CHS1, sucrose transporters, SWEETs, starch-branching enzymes, and UDP-glucose pyrophosphorylase. However, genes involved in programmed cell death (PCD) were significantly upregulated and contained cytochrome c, metacaspase, and protein kinase genes. The results indicate that U. virens toxins may act as the pathogenic factors to reduce stress resistance, disrupt total sugar accumulation and starch formation, and induce PCD.

Effect of lipids complexes on controlling ethylene gas release from V-type starch

In this study, the effects of n-decanoic acid (n-CA) or coconut oil (CCN) on the release of ethylene from V-type starch (VS) were investigated. Results of differential scanning calorimetry showed that adding n-CA or CCN into VS generated a starch–lipid complex. Results of scanning electron microscopy and confocal laser scanning microscopy indicated that VS granules aggregated but oil films appeared on the surface of the VS aggregates when oil was added. The addition of n-CA or CCN effectively delayed the release of ethylene in VS, and the deceleration effect gradually became obvious with the increase in oil addition. These results suggest that the formation of starch–lipid complexes, the aggregation of starch granules, and the presence of oil films play important roles in slowing down the release of ethylene.

Biodegradable composites of starch/polyvinyl alcohol/soybean hull (Glycine max L.) produced by thermoplastic injection

AbstractSoybean hull is an agro‐industrial residue produced abundantly both in Brazil and worldwide. It is generated during the dehulling of the grains for oil production. This work aimed to develop materials using low‐cost, abundant, and biodegradable raw materials, as soybean hull, corn starch, polyvinyl alcohol (PVA), and glycerol. Five formulations of thermoplastic starch (TPS) were produced containing between 4% and 19% of ground soybean hull and another five formulations of the same composition but with 6% PVA added. The materials were extruded and injected to produce specimens. They were analyzed by FTIR‐ATR, mechanical tests, mass loss in water, and dimensional variations. The addition of hull to the TPS did not affect the processability of the materials, and the PVA improved the processability. Hull concentration from 8% to 15% increased the tensile strength of the materials, and the PVA reduced them. Soybean hull provided greater dimensional stability to the specimens, especially with PVA and with the highest hull contents (15% and 19%).Content of soy hulls between 8% and 15% acted as a structural reinforcer of TPS materials, forming a composite, as it increased the tensile strength, reduced the elongation, increased the stiffness, and improved the dimensional stability of the materials.

Storage Stability of Chilled and Frozen Starch Gels as Affected by Blended Starch Formulation, Sucrose Syrup, and Coconut Milk.

Effects of starch formulation, highly concentrated sucrose solution, and coconut milk on the stability of starch gels kept under chilled and frozen conditions were determined. Gels containing rice starch (RS), tapioca starch (TS) (RS:TS of 1 : 0.85), and hydroxypropyl distarch phosphate (HDP, 0-50% of total starch) were prepared from 15% starch suspension using water, 45°Brix sucrose syrup or coconut milk as liquid media. After aging at 4°C for 21 days, starch gels had higher hardness and chewiness, with lower cohesiveness and springiness (p ≤ 0.05). Water-based gels containing HDP had less extent of texture hardening, lower degree of crystallinity, and more homogeneous microstructure during 4°C aging. However, for the starch gels in sucrose syrup or coconut milk, HDP induced greater gel hardening, higher degree of crystallinity, and denser gel microstructure during chilled storage. This could be due to the crystallization of sucrose or lipid/amylose-lipid complexes. Nevertheless, HDP enhanced freeze-thaw stability of the gels, regardless of the liquid media used (p ≤ 0.05). According to the consumer test of the model desserts subjected to a single freeze-thaw cycle, the sample containing 50% HDP gel in sucrose syrup or 25% HDP gel in coconut milk gained the highest hedonic score of texture and overall acceptance (p ≤ 0.05).

Impact of chemical modification by immersion with malic acid on the physicochemical properties and resistant starch formation in rice.

The effects of immersion time on the physicochemical properties and resistant starch (RS) formation of malic acid-treated rice were investigated. Malic acid treatment decreased the frequency of cracks within the rice kernel. The color (lightness) was significantly affected by the immersion time, reflecting the browning of rice. The degree of substitution gradually increased with the immersion time and reached a plateau after 12 h, and the intensity of the C=O bond peak detected in the Fourier-transform infrared spectroscopy showed a similar trend. However, the crystallinity of rice decreased as the immersion time increased, which was confirmed by the X-ray diffraction and thermal transition properties. A gradual increase in RS was observed as the immersion time and DS increased, ranging from 44.5% to 73.3%, reaching a maximum after 12 h of immersion. Therefore, 12 h was determined to be the optimal immersion time for maximizing RS content. This information about the structural characteristics and heat-stable properties of malic acid-treated rice in starch digestion can be used to develop a low-digestible food ingredient and lead to further application of the study. PRACTICAL APPLICATION: This study reported the preparation and physicochemical properties of malic acid-treated resistant starch with different immersion times. This information could contribute to the structural characterization of resistant starch and the development of low-calorie processed rice products.

Effects of various cooling temperatures on resistant starch formation and pasting behaviour of autoclaved taro flour

Taro is one of the tubers rich in starch which is prospectively improved for its functional properties. In this work, the cooling treatment subjected to the autoclaved taro flour on resistant starch formation and pasting behaviour were evaluated. The flours were autoclaved at 121°C for 30 minutes followed by cooling at different temperatures (25, 4, and -20°C) and repeated twice cycles. Among the cooling treatments, the 4°C had the highest RS (13.11%) compared to 25°C and 4°C which were 13.02% and 12.76% respectively. The autoclaved-cooled treatment altered the microstructure of starch granules showing fracture morphology and irregular shape. The starch morphology treated by autoclaving-cooling at the lowest temperature exhibited a slightly rougher and more wrinkled than other cooling temperatures. Moreover, repeated autoclaving-treatment lowered the pasting temperature. Other than the cooled flour at 25°C, the pasting parameters of the treated flours (peak, final viscosity, and setback) were higher than the untreated flour.

Rheological & 3D printing properties of potato starch composite gels

Starch based gels can be three-dimensional (3D) printed to fabricate food products. Previously, researchers added sodium alginate to the starch gel to enhance shape retention of corresponding printed products. This inspired us to hypothesize that xanthan gum, which is also a common thickening agent, might play a similar role in structuring starch composite gel in 3D printing experiments. The geometric accuracy of products, as well as their rheological properties, water state distribution, and scanning electron microscopy images, were evaluated with varying amounts of added sodium alginate (4%, 5%, and 6% w/w, dry basis), xanthan gum (4%, 5%, and 6% w/w, dry basis), and sodium alginate/xanthan gum (2%/2%, 2.5%/2.5%, and 3%/3% w/w, dry basis) for extrusion-based 3D printing. Computation fluid dynamic simulation was used to model the printing process. The results showed that pseudoplastic gels with relatively high extrudability and shape retention were formed. The 3D-printed starch gel with an optimized formula with added sodium alginate and xanthan gum (2.5%/2.5% w/w, dry basis) exhibited the best geometric accuracy. The shape was retained with appropriate gel formation characteristics and physical properties. The addition of sodium alginate and xanthan gum at suitable levels contributed to the formation of 3D-printed starch based products with technical feasibility for potential food applications. Mathematical model of the 3D printing process was established. The model explained the non-uniformity of velocity distribution in the flow channel due to the varied diameter, and such non-uniformity led to jet expansion during the 3D printing process.

Influence of Processing Variables on Some Physico-Chemical Properties and Quality of Manioc Starch-Based Adhesives

Bio-degradable cassava starch-based adhesives were produced from chemically gelatinized starch formulations. The varying combinations of process parameters applied include: concentration of gelatinization modifier, mass % borax/starch, and temperature of reaction mixture. The physico-chemical parameters for characterizing the adhesive samples were viscosity, density, pH and bonding strength. The effects of the variation of process parameters on the quality of the adhesives were assessed using response surface (central composite) designs with 2 factors, to relate the highest adhesive quality with the optimal combination of process factors. The adhesives produced using HCl as the gelatinization modifier were of a higher quality than those produced using NaOH with one of the most important quality assessment parameters which is the bond strength being 22.31 kPa at 0.01 M and 20% mass borax/starch and 11.60 kPa at 0.01 M and 8% mass borax/starch for HCl and NaOH respectively. The experimental results demonstrated that the optimal temperature for the production of the adhesive was 85˚C.

Does temporary heat stress or low temperature stress similarly affect yield, starch, and protein of winter wheat grain during grain filling?

Temperature plays a critical role in wheat grain development. A controlled phytotron glasshouse study was done to investigate the effects of short-term low or high temperature stress on grain yield and the proportions of starch and protein in two wheat cultivars Ningmai 13 and Zhenmai 12. The duration of grain filling was longer under low temperature stress and was shorter under high temperature stress during various stages of grain filling. Grain filling rate, grain width, grain yield, contents of total starch and amylopectin of both cultivars were decreased by low or high temperature stress. However, the proportions of total protein, gliadin, and glutenin were increased dramatically after abnormal temperature stress. The significant increase in the proportion of protein was mainly caused by higher proportions of ω-gliadin and HMW-GS. For both cultivars, the formation of starch, protein, and grain yield was most sensitive to temperature stress during 15–17 days post anthesis (DPA), followed by 7–9 DPA for grain starch and yield formation, and 23–25 DPA for grain protein formation, respectively. Our study suggested that both high and low temperature stress after anthesis affected winter wheat grain yield, starch and protein accumulation, especially during the period of 15–17 DPA.

Influence of waxy proteins on wheat resistant starch formation, molecular structure and physicochemical properties

This study investigated the influence of wheat waxy proteins on type III resistant starch (RS3) formation, molecular structure and physicochemical properties. Waxy deletions led to a significant increase in B- and C-type starch granules, particle size of RS3, and slowly digesting starch content, and a decrease in content of amylose and RS3. X-ray powder diffraction and Fourier-transform infrared spectroscopy analyses revealed high relative crystallinity and long-range (1047/1022 cm−1, IR1) and low short-range (1022/995, IR2) crystalline structures of RS3 in waxy wheat, which suggests that waxy deletions could produce a more ordered crystalline structure and fewer amorphous regions in RS3 crystals. Further laser confocal microscopy Raman spectroscopy analysis found that waxy deletions significantly increased the full width at half maximum and intensity of the bands at 480 cm−1, as well as leading to more ordered RS3 crystals. These changes in molecular structure resulted in improved physicochemical properties of RS3.

The effect of urea and solopotass on morpho-physiological and biochemical characteristics of Super Sweet Corn (Zea mays var Basin) in response to different irrigation regimes

Introduction Maize (Zea mays L.) is widely spread all over the world due to its many characteristics, especially its ability to adapt to different climatic conditions and occupies the third position after wheat and rice in terms of crop area. Currently, maize is cultivated in more than 240 hectares of Iranian land (Gheţe et al., 2018). Super Sweet Corn is a monocotyledonous, annual, single plant of the family poaceae, which is widely used in agriculture and industry (Gheţe et al., 2018). Abiotic stresses affect different aspects of plant growth, such as reduction and delay in germination, decrease in development rate, decrease in plant organs growth, and decrease in plant life duration and finally decrease in dry matter production. Among abiotic stresses, drought stress is considered to be the most influential type of stress in the production of oil seeds in the world and can greatly reduce production on many arable lands. One of the primary effects of drought is the reduction of water content of plant tissues (Ghanbari et al., 2016). Nitrogen is one of the major nutrients in biomass determination and crop yield through impact on leaf area index (radiation intake) and photosynthetic capacity per leaf area unit (Compelo et al., 2019). Potassium in physiological applications including: carbohydrate metabolism or starch formation; protein metabolism; control and regulation of various essential minerals activities; Stomach and water play a key role (Tisdale et al. 2003). This study was carried out to investigate the effect of urea fertilizers combination with solopotass fertilizers on yield and yield components of Super Sweet Corn in different irrigation regimes. Materials and methods This research was carried out as a factorial experiment in a randomized complete block design with three replications in Varamin Agricultural & Livestock Complex in 2016. Factorial combinations of three treatments of water deficit stress (15% (un-stressed control), 30% (moderate stress) and 45% (severe stress) of FC depletion), four nitrogen fertilizer rate (zero (un-fertilized control), 150, 200 and 250 kg.ha-1) from urea and four potassium fertilizer rate (zero (un-fertilized control), 100, 150 and 200 kg.ha-1) from potassium sulfate were considered. Drip irrigation (T-tape) was applied the row length in each experimental plot was 6 m, 50 cm apart. The distance between the plots and between the repetitions was 1 and 3.5 m, respectively. Plant to plant distance within each row was 8 cm. The irrigation schedules were based on soil moisture discharge of field capacity at the root zone of Super Sweet Corn with a depth of about 30 cm. Results The results of this study showed that three-way interaction of irrigation time and chemical fertilizers was significant in leaf length and diameter, grain number, 1000 grain weight, photosynthesis rate and catalase enzyme. In moderate stress conditions, the highest grain yield was obtained from 150 kg urea and 200 kg solopotass, respectively. The highest photosynthesis rate and catalase activity were observed in the control treatment under severe stress conditions. Conclusion In general, it can be concluded that application of 150 kg urea and 200 kg solopotass increased 37.89 % grain yield compared to control under moderate stress conditions, respectively, that indicates the ability of chemical fertilizers to increase yield and yield components as well as increase photosynthesis rate under stress conditions and is highly effective in the emergence of resistance to super sweet maize plant and severe yield loss. Finally, application of 150 kg urea and 200 kg solopotass on the moderate stress conditions is recommended for optimum yield.

Regulators of Starch Biosynthesis in Cereal Crops.

Starch is the main food source for human beings and livestock all over the world, and it is also the raw material for production of industrial alcohol and biofuel. A considerable part of the world’s annual starch production comes from crops and their seeds. With the increasing demand for starch from food and non-food industries and the growing loss of arable land due to urbanization, understanding starch biosynthesis and its regulators is essential to produce the desirable traits as well as more and better polymers via biotechnological approaches in cereal crops. Because of the complexity and flexibility of carbon allocation in the formation of endosperm starch, cereal crops require a broad range of enzymes and one matching network of regulators to control the providential functioning of these starch biosynthetic enzymes. Here, we comprehensively summarize the current knowledge about regulatory factors of starch biosynthesis in cereal crops, with an emphasis on the transcription factors that directly regulate starch biosynthesis. This review will provide new insights for the manipulation of bioengineering and starch biosynthesis to improve starch yields or qualities in our diets and in industry.

MODIFIKASI PATI HANJELI (Coix lacryma-jobi L.) BERPORI MELALUI ULTRASONIKASI DAN OZONASI

<p>Adlay (Coix lacryma-jobi L.) is a potential source of starch but has not been utilized optimally. Native adlay starch has several weaknesses such as functional properties of low swelling volume and solubility, prone to retrogradation, and low stability. Physical modification of ultrasonication and chemical modification by oxidation using ozone can be an alternative to improve the functional properties of adlay starch through the formation of porous starch. The aim of this research was to produce porous adlay starch by ultrasonication and ozonation. The study consisted of several different treatments on hanjeli starch (ozonation starch, ultrasonication of 15 minutes, ultrasonication of 30 minutes, combined ultrasonication of 15 minutes and 30 minutes with ozonation). The results showed the appearance of pores on the surface of the granules of modified adlay starch with the best results being modified combination of ultrasonication 30 minutes and ozonation, which resulted in a decrease in swelling volume from 18.13 ± 3.98 mL/g to 15.71 ± 0.35 mL/g, an increase in solubility from 6.76 ± 0.62% to 9.59 ± 0.44%, and a decrease in water absorption capacity from 1.25 ± 0.02 g/g to 1.13 ± 0.02 g/ g. Modification of adlay starch by ultrasonication, ozonation, and their combination effectively produced porous starch granules, but did not cause the formation of new functional groups in starch.</p>

Passive Fire Protection of Taeda pine Wood by Using Starch-Based Surface Coatings.

The present paper reports the preliminary results relating to the development, subsequent application, and testing of environmentally benign starch-based formulations for passive fire protection of wood substrates. This study evaluated the effectiveness of starch colloid coatings applied onto the wood surface with a view to improving its performance when exposed to the external heat flux (35 kW/m2) during cone calorimetric tests. The formulations were prepared from aqueous colloid solutions of either starch alone, or in combination with inorganic salts, such as: sodium carbonate, Na2CO3, potassium carbonate, K2CO3, and diammonium hydrogen phosphate, (NH4)2HPO4. The fire performance of Taeda pine wood samples, where their top surfaces were treated with these formulations, was compared with the control sample. The thermal and combustion characteristics of the tested samples were determined with the aid of thermo-gravimetric analysis (TGA), bomb and cone calorimetric techniques, and a steady state tube furnace coupled to an FT-IR spectrometer. A significant boost of fire protection was observed when starch formulations with added inorganic salts were applied onto the wood surfaces, compared with the control sample. For example, the presence of K2CO3 in starch colloid solutions resulted in a notable delay of the ignition and exhibited a reduction in the heat release parameters in comparison with the untreated wood substrate.

Recent Developments in the Formulation and Use of Polymers and Particles of Plant‐based Origin for Emulsion Stabilizations

The main scope of this Review was the recent progress in the use of plant-based polymers and particles for the stabilization of Pickering and non-Pickering emulsion systems. Due to their availability and promising performance, it was discussed how the source, modification, and formulation of cellulose, starch, protein, and lignin-based polymers and particles would impact their emulsion stabilization. Special attention was given toward the material synthesis in two forms of polymeric surfactants and particles and the corresponding formulated emulsions. Also, the effects of particle size, degree of aggregation, wettability, degree of substitution, and electrical charge in stabilizing oil/water systems and micro- and macro-structures of oil droplets were discussed. The wide range of applications using such plant-based stabilizers in different technologies as well as their challenge and future perspectives were described.