Topical application of spent coffee ground extracts protects skin from ultraviolet B-induced photoaging in hairless mice

2016 ◽  
Vol 15 (6) ◽  
pp. 779-790 ◽  
Author(s):  
Hyeon-Son Choi ◽  
Eu Ddeum Park ◽  
Yooheon Park ◽  
Sung Hee Han ◽  
Ki Bae Hong ◽  
...  

The topical application of SCG-derived OSCG and ESCG effectively protected the skin against UVB-induced photoaging in mice.

Planta Medica ◽  
2009 ◽  
Vol 75 (09) ◽  
Author(s):  
F Casetti ◽  
W Jung ◽  
U Wölfle ◽  
J Reuter ◽  
K Neumann ◽  
...  

2021 ◽  
Vol 765 (1) ◽  
pp. 012089
Author(s):  
R Taufik ◽  
M Mohamad ◽  
R Wannahari ◽  
N F Shoparwe ◽  
WHW Osman ◽  
...  

2021 ◽  
pp. 002199832110022
Author(s):  
Ahmed Alhelal ◽  
Zaheeruddin Mohammed ◽  
Shaik Jeelani ◽  
Vijaya K Rangari

Semi-crystalline carbon biochar is derived from spent coffee grounds (SCG) by a controlled pyrolysis process at high temperature/pressure conditions. Obtained biochar is characterized using XRD, SEM, and TEM techniques. Biochar particles are in the micrometer range with nanostructured morphologies. The SCG biochar thus produced is used as reinforcement in epoxy resin to 3 D print samples using the direct-write (DW) method with 1 and 3 wt. % loadings. Rheology results show that the addition of biochar makes resin viscous, enabling it to be stable soon after print; however, it could also lead to clogging of resin in printer head. The printed samples are characterized for chemical, thermal and mechanical properties using FTIR, TGA, DMA and flexure tests. Storage modulus improved with 1 wt. % biochar addition up to 27.5% and flexural modulus and strength increased up to 55.55% and 43.30% respectively. However, with higher loading of 3 wt. % both viscoelastic and flexural properties of 3D printed samples drastically reduced thus undermining the feasibility of 3D printing biochar reinforced epoxies at higher loadings.


2015 ◽  
Vol 35 (3) ◽  
pp. 413-420 ◽  
Author(s):  
Ki-Bae Hong ◽  
Yooheon Park ◽  
Jae Hwan Kim ◽  
Jin Man Kim ◽  
Hyung Joo Suh

2021 ◽  
Vol 29 (9) ◽  
pp. 597-604
Author(s):  
Supparoek Boopasiri ◽  
Pongdhorn Sae-Oui ◽  
Sirilug Lundee ◽  
Sukanya Takaewnoi ◽  
Chomsri Siriwong

2017 ◽  
Vol 34 (1) ◽  
pp. 95-102 ◽  
Author(s):  
Tomasz Ciesielczuk ◽  
Czesława Rosik-Dulewska ◽  
Joanna Poluszyńska ◽  
Irena Sławińska

Abstract The study presents the results of research on the acute toxicity of a fertilizer formulas made of spent coffee ground (SCG) with addition of ash from low-temperature combustion of biomass or ash with an admixture of magnesium sulphate and blood meal. The experimental fertilizer formulas included also rape oil used as a plasticizer for controlling the nutrients release from the fertiliser. Mustard (Sinapis alba L.), oats (Avena sativa sp. L.), cucumber (Cucumis sativus L.) and cress (Lepidium sativum L.) were used as test plants species in the experiment. The toxicity tests were performed using a standard procedure of 72 h with the use of Phytotoxkit microbiotest and fertilizer application of 2.5; 5 and 10% (v/v). The obtained results indicated an increase of acute toxicity for all tested plant species, proportionally to the applied doses of the fertilizer. During the 72 h period, the strongest inhibition of seedling growth was recorded in samples consisting of 10% of the tested fertilizers, particularly when they showed considerable level of salinity or low pH values. From the tested plant species, cress (Lepidium sativum L.) turned out to be the most sensitive to the applied fertilizers, the least was cucumber (Cucumis sativus L.) for which only a small inhibition of root system growth was observed. The inhibited growth of roots could be attributed to a reduced oxygen access and excessive salinity of the substratum caused by the applied additives.


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