Characterization of sericin obtained from cocoons and silk yarns

Martínez, Diana Carolina Castrillón; Zuluaga, Carolina Londoño; Restrepo‐Osorio, Adriana; Álvarez‐López, Catalina

doi:10.1016/j.proeng.2017.07.053

Cited by 55 publications

(19 citation statements)

References 16 publications

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“…The spray-drying of the sericin dispersion containing T and M gave a process yield that was even higher (sd_SMT: 58.9 ± 1.2% w/w), at more than 50% w/w, which is the landmark value beyond which the process can be defined as successfully performed [56]. This satisfying yield, which is noticeably The sd_S and sd_SMT powders were made up of microparticles characterized by rough surfaces, with hollows and wrinkles due to the partial collapse of the particles [53]. In particular, the sd_SMT powder (Figure 3b) presented a lower grade of aggregation compared to the spray-dried protein (Figure 3a) and a better homogeneity in size.…”

Section: Percentage Yield Of Spray-dryingmentioning

confidence: 85%

“…As an example, the stereomicroscope images of fd_SM and sd_SMT are shown in Figure 1. Figure 2a (fd_S) displays globular and a more fibrillar structure that is characteristic of sericin [53] while the SEM images of the fd_ST and fd_SM powders show large laminar flakes (Figure 2b,c) whose aspect is irregular and discontinuous. In addition, the presence of small holes in the fd_ST particles (Figure 2b) may indicate an initial collapse of the cake, thus explaining the poor handling characteristics of this freeze-dried powder.…”

Section: Visual Inspection and Morphologymentioning

confidence: 99%

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Effect of Methyl–β–Cyclodextrin and Trehalose on the Freeze–Drying and Spray–Drying of Sericin for Cosmetic Purposes

et al. 2021

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Sericin is a protein extracted from Bombyx mori silk cocoons. Over the last decade, this wastewater product of the textile industry has shown many interesting biological properties. This protein is widely used in the cosmetic and biomedical fields. In this study, sericin has been obtained via a High–Temperature High–Pressure degumming process, and was dried using the freeze–drying (fd) and spray–drying (sd) techniques. Proteins tend to collapse during drying, hence, sericin has been dried in the presence of two selected carrier agents: methyl–β–cyclodextrin and trehalose. The obtained powders have been analyzed using thermal investigation, microscopy (optical, SEM), and granulometric and spectroscopic analyses. Moreover, the percentage yield of the spray–drying process has been calculated. Both the agents were able to significantly improve the drying process, without altering the physico–chemical properties of the protein. In particular, the co–spray–drying of sericin with methyl–β–cyclodextrin and trehalose gave good process yields and furnished a powder with low moisture content and handling properties that are better than those of the other studied dried products. These characteristics seem to be appropriate and fruitful for the manufacturing of cosmetic raw materials.

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Section: Percentage Yield Of Spray-dryingmentioning

confidence: 85%

Section: Visual Inspection and Morphologymentioning

confidence: 99%

Effect of Methyl–β–Cyclodextrin and Trehalose on the Freeze–Drying and Spray–Drying of Sericin for Cosmetic Purposes

et al. 2021

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“…Fibers are extracted from the Cocoons which are the larvae of the insects undergoing complete metamorphosis. Silk fibers possess good mechanical properties such as high strength, extensibility, and compressibility (Yuan et al, 2010;Murugesh Babu, 2016;Castrillón Martínez et al, 2017;McGregor, 2018).…”

Section: Silk (Bombyx Mori)mentioning

confidence: 99%

Natural Fibers as Sustainable and Renewable Resource for Development of Eco-Friendly Composites: A Comprehensive Review

2019

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The increase in awareness of the damage caused by synthetic materials on the environment has led to the development of eco-friendly materials. The researchers have shown a lot of interest in developing such materials which can replace the synthetic materials. As a result, there is an increase in demand for commercial use of the natural fiber-based composites in recent years for various industrial sectors. Natural fibers are sustainable materials which are easily available in nature and have advantages like low-cost, lightweight, renewability, biodegradability, and high specific properties. The sustainability of the natural fiber-based composite materials has led to upsurge its applications in various manufacturing sectors. In this paper, we have reviewed the different sources of natural fibers, their properties, modification of natural fibers, the effect of treatments on natural fibers, etc. We also summarize the major applications of natural fibers and their effective use as reinforcement for polymer composite materials.

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“…The filtration process removed impurities from the sericin solution. The filtered sericin solution was subjected to lyophilizer (freeze drying) at −82 C for 72 hr to obtain sericin powder (Martínez et al, 2017). Extraction procedures of sericin and fibroin were carried out separately by utilizing fresh silk cocoons each time.…”

Section: Extraction Of Sericin From Cocoonsmentioning

confidence: 99%

Silk derived formulations for accelerated wound healing in diabetic mice

Tariq¹,

Tahir²,

Butt³

et al. 2021

PeerJ

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Background The present study aimed to prepare effective silk derived formulations in combination with plant extract (Aloe vera gel) to speed up the wound healing process in diabetic mice. Methods Diabetes was induced in albino mice by using alloxan monohydrate. After successful induction of diabetes in mice, excision wounds were created via biopsy puncture (6 mm). Wound healing effect of silk sericin (5%) and silk fibroin (5%) individually and in combination with 5% Aloe vera gel was evaluated by determining the percent wound contraction, healing time and histological analysis. Results The results indicated that the best biocompatible silk combination was of 5% silk fibroin and 5% Aloe vera gel in which wounds were healed in 13 days with wound contraction: 98.33 ± 0.80%. In contrast, the wound of the control group (polyfax) healed in 19 day shaving 98.5 ± 0.67% contraction. Histological analysis revealed that the wounds which were treated with silk formulations exhibited an increased growth of blood vessels, collagen fibers, and much reduced inflammation. Conclusion It can be concluded that a combination of Bombyx mori silk and Aloe vera gel is a natural biomaterial that can be utilized in wound dressings and to prepare more innovative silk based formulations for speedy recovery of chronic wounds.

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Characterization of sericin obtained from cocoons and silk yarns

Cited by 55 publications

References 16 publications

Effect of Methyl–β–Cyclodextrin and Trehalose on the Freeze–Drying and Spray–Drying of Sericin for Cosmetic Purposes

Effect of Methyl–β–Cyclodextrin and Trehalose on the Freeze–Drying and Spray–Drying of Sericin for Cosmetic Purposes

Natural Fibers as Sustainable and Renewable Resource for Development of Eco-Friendly Composites: A Comprehensive Review

Silk derived formulations for accelerated wound healing in diabetic mice

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