3 research outputs found
Optimization of a Sustainable Protocol for the Extraction of Anthocyanins as Textile Dyes from Plant Materials
Anthocyanins are the largest group of polyphenolic pigments in the plant kingdom. These non-toxic, water-soluble compounds are responsible for the pink, red, purple, violet, and blue colors of fruits, vegetables, and flowers. Anthocyanins are widely used in the production of food, cosmetic and textile products, in the latter case to replace synthetic dyes with natural and sustainable alternatives. Here, we describe an environmentally benign method for the extraction of anthocyanins from red chicory and their characterization by HPLC-DAD and UPLC-MS. The protocol does not require hazardous solvents or chemicals and relies on a simple and scalable procedure that can be applied to red chicory waste streams for anthocyanin extraction. The extracted anthocyanins were characterized for stability over time and for their textile dyeing properties, achieving good values for washing fastness and, as expected, a pink-to-green color change that is reversible and can therefore be exploited in the fashion industry
ADAHELI+: Exploring the fast, dynamic Sun in the X-ray, optical, and near-infrared
Advanced Astronomy for Heliophysics Plus (ADAHELI+) is a project concept for a small solar and
space weather mission with a budget compatible with an European Space Agency (ESA) S-class mission,
including launch, and a fast development cycle. ADAHELI+ was submitted to the European Space Agency
by a European-wide consortium of solar physics research institutes in response to the âCall for a small mission
opportunity for a launch in 2017,â of March 9, 2012. The ADAHELI+ project builds on the heritage of the former
ADAHELI mission, which had successfully completed its phase-A study under the Italian Space Agency 2007
Small Mission Programme, thus proving the soundness and feasibility of its innovative low-budget design.
ADAHELI+ is a solar space mission with two main instruments: ISODY+: an imager, based on FabryâPĂ©rot
interferometers, whose design is optimized to the acquisition of highest cadence, long-duration, multiline spectropolarimetric
images in the visible/near-infrared region of the solar spectrum. XSPO: an x-ray polarimeter for
solar flares in x-rays with energies in the 15 to 35 keV range. ADAHELI+ is capable of performing observations
that cannot be addressed by other currently planned solar space missions, due to their limited telemetry, or by
ground-based facilities, due to the problematic effect of the terrestrial atmospher
Firefly: The Case for a Holistic Understanding of the Global Structure and Dynamics of the Sun and the Heliosphere
This white paper is on the HMCS Firefly mission concept study. Firefly focuses on the global structure and dynamics of the Sun's interior, the generation of solar magnetic fields, the deciphering of the solar cycle, the conditions leading to the explosive activity, and the structure and dynamics of the corona as it drives the heliosphere