[Latin Name] Tagetes erecta L

[Plant Source]fromChinal

[Specifications] 5%~90%

[Appearance] Orange Yellow fine powder

Plant Part Used: Flower

[Particle size] 80 Mesh

[Loss on drying] ≤5.0%

[Heavy Metal] ≤10PPM

[Storage] Store in cool & dry area, keep away from the direct light and heat.

[Shelf life] 24 Months

[Package] Packed in paper-drums and two plastic-bags inside.

[Net weight] 25kgs/drum

Introduction

Marigold flower belongs to compositae family and tagetes erecta. It is an annual herb and widely planted in Heilungkiang, Jilin, Inner Mongolia, Shanxi, Yunnan , etc.The marigold we used comes from Yunnan province. Based on the local situation of special soil environment and lighting condition , the local marigold have characteristics like growing fast,long flowering period ,high productive capacity and adequate quality.Thus, the steady supply of raw materials, high yield and reduction of cost can be guaranteed.

Products function

1).Protect skin from the harmful solar ray.

2).Protect skin through reducing the risk of macular degenration.

3).Prevent cardiopathy and cancer and resist arteriosclerosis.

4).Prevent retina against oxidation when absorb light

5).Anti-cancer and preventing diffuse of cancer cell

6).Promote eyes’ health

Usage

(1)Applied in pharmaceutical health care product field, it is mainly used in vision care products to alleviate visual fatigue, prevent macular degeneration,and protect the health of eye

(2)Applied in cosmetics, it is mainly used to whitening, anti-wrinkle and UV protection.

Artificial biofilms establish the role of matrix interactions in staphylococcal biofilm assembly and disassembly. Elizabeth J. Stewart et al (2015), Scientific Reports https://dx.doi.org/10.1038/srep13081

We demonstrate that the microstructural and mechanical properties of bacterial biofilms can be created through colloidal self-assembly of cells and polymers, and thereby link the complex material properties of biofilms to well understood colloidal and polymeric behaviors. This finding is applied to soften and disassemble staphylococcal biofilms through pH changes. Bacterial biofilms are viscoelastic, structured communities of cells encapsulated in an extracellular polymeric substance (EPS) comprised of polysaccharides, proteins, and DNA. Although the identity and abundance of EPS macromolecules are known, how these matrix materials interact with themselves and bacterial cells to generate biofilm morphology and mechanics is not understood. Here, we find that the colloidal self-assembly of Staphylococcus epidermidis RP62A cells and polysaccharides into viscoelastic biofilms is driven by thermodynamic phase instability of EPS. pH conditions that induce phase instability of chitosan produce artificial S. epidermidis biofilms whose mechanics match natural S. epidermidis biofilms. Furthermore, pH-induced solubilization of the matrix triggers disassembly in both artificial and natural S. epidermidis biofilms. This pH-induced disassembly occurs in biofilms formed by five additional staphylococcal strains, including three clinical isolates. Our findings suggest that colloidal self-assembly of cells and matrix polymers produces biofilm viscoelasticity and that biofilm control strategies can exploit this mechanism.

Video Title: OnnoRokom Pathshala_Kosh Roshayon
Subject: Biology
Topic: Polysaccharides Part 02
Class: HSC 1st Year
Lectured by: Md. Sanaullah Khan Sani
Website: https://www.onnorokompathshala.org
Facebook Link: https://www.facebook.com/OnnoRokomPathshala

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