Resources
The crimson tide of Hibiscus sabdariffa circles the globeRuby Red Resources
Imagine a world painted crimson, not with danger, but with vibrant possibility. This is the world of Hibiscus sabdariffa, a plant with a history as rich as its hue. Its story unfolds not just in dusty textbooks, but in steaming mugs of ruby-red tea, in the calloused hands of farmers around the world, and in the cutting-edge research labs shaping the future of medicine and agriculture.
Intrigued? The secrets of Hibiscus sabdariffa are more accessible than ever. Dive into peer-reviewed journals that unlock the science behind its potential health benefits. Unravel centuries of tradition through travelogues and historical accounts, tracing its journey from ancient Africa to your local grocery store. Explore online communities buzzing with passionate enthusiasts sharing recipes, cultivation tips, and vibrant photos of the plant in all its glory.
Online content transport you to sun-drenched fields where farmers nurture these crimson blossoms. Educational websites, designed with clear language and interactive features, peel back the layers of its phytochemical properties, its potential applications in the food industry, and its role in sustainable agriculture.
Seed catalogs brim with varieties waiting to be planted, their vibrant blooms a testament to the plant’s enduring beauty. Farmers’ markets offer the chance to connect with the people who cultivate this wonder of nature, their knowledge passed down through generations.
The story of Hibiscus sabdariffa is a tapestry woven from science, history, culture, and personal exploration.
You become part of this vibrant narrative with a click, a book in hand, or a seed sown. So, take a sip of the Ruby Red, and embark on your own adventure into the world of Hibiscus sabdariffa.
The resources are here, waiting to be explored, and the potential discoveries are as endless as the shades of crimson this remarkable plant has to offer.
Scientific Glossary of Terms and Concepts Supporting the Investigation of Hibiscus sabdariffa
Many areas of scientific inquiry intersect with the study of Hibiscus sabdariffa. This glossary highlights some of the scientific terms and concepts that are useful in understanding the potential benefits of Hibiscus sabdariffa.
Gossypetin
Gossypetin, also known as 3,5,7,8,3′,4′-hexahydroxyflavone, is a flavonol, a type of flavonoid. It has been isolated from the flowers and the calyx of Hibiscus sabdariffa (roselle) and exhibits a strong antibacterial activity. The compound has also been found to act as an antagonist of TrkB. Recently it was shown that gossypetin has radioprotective activity. The enzyme 8-hydroxyquercetin 8-O-methyltransferase uses S-adenosyl methionine and gossypetin to produce S-adenosylhomocysteine and 3,5,7,3′,4′-pentahydroxy-8-methoxyflavone.In 2022, a study in an animal model using intragastric administration suggested that the flavonoid gossypetin facilitated the clearance of beta-amyloid in the brain and is a promising target for the study of treatments for Alzheimer’s Disease by enhancing microglial phagocytic activity against Aβ.
2023-05-02
Current Advancements in Pectin: Extraction, Properties and Multifunctional Applications
Foods
2022-01
Chandel, Vinay; Biswas, Deblina; Roy, Swarup; Vaidya, Devina; Verma, Anil; Gupta, Anil
Pectin is a heterogeneous hydrocolloid present in the primary cell wall and middle lamella in all dicotyledonous plants, more commonly in the outer fruit coat or peel as compared to the inner matrix. Presently, citrus fruits and apple fruits are the main sources for commercial extraction of pectin, but ongoing research on pectin extraction from alternate fruit sources and fruit wastes from processing industries will be of great help in waste product reduction and enhancing the production of pectin. Pectin shows multifunctional applications including in the food industry, the health and pharmaceutical sector, and in packaging regimes. Pectin is commonly utilized in the food industry as an additive in foods such as jams, jellies, low calorie foods, stabilizing acidified milk products, thickener and emulsifier. Pectin is widely used in the pharmaceutical industry for the preparation of medicines that reduce blood cholesterol level and cure gastrointestinal disorders, as well as in cancer treatment. Pectin also finds use in numerous other industries, such as in the preparation of edible films and coatings, paper substitutes and foams. Due to these varied uses of pectin in different applications, there is a great necessity to explore other non-conventional sources or modify existing sources to obtain pectin with desired quality attributes to some extent by rational modifications of pectin with chemical and enzymatic treatments.
10.3390/foods11172683
https://www.mdpi.com/2304-8158/11/17/2683
Foods | Free Full-Text | Current Advancements in Pectin: Extraction, Properties and Multifunctional Applications
https://www.mdpi.com/2304-8158/11/17/2683
Flavanols and cognition
Slow cognitive decline with flavonols, study says
LaMotte, Sandee
https://www.cnn.com/2022/11/28/health/flavonols-memory-boost-wellness/index.html
CNN Health
2022-11-28
Soxhlet Extraction: Principle, Extraction procedure, and Apparatus
Chemistry Notes
2022-12-12
Aryal, Dipa
Soxhlet extraction is an advanced extraction technique that involves repeatedly circulating the same solvent through the extractor. In 1879, Franz Ritter von Soxhlet, professor of agricultural chemistry at the Technical University of Munich, developed this extraction technique. This is a very useful technique for preparative goals in which the analyte is concentrated from the matrix as a whole or separated from specific interfering substances.
Soxhlet Extraction: Principle, Extraction procedure, and Apparatus
Soxhlet extractor
Wikipedia
2023-05-23
A Soxhlet extractor is a piece of laboratory apparatus invented in 1879 by Franz von Soxhlet. It was originally designed for the extraction of a lipid from a solid material. Typically, Soxhlet extraction is used when the desired compound has a limited solubility in a solvent, and the impurity is insoluble in that solvent. It allows for unmonitored and unmanaged operation while efficiently recycling a small amount of solvent to dissolve a larger amount of material.
https://en.wikipedia.org/w/index.php?title=Soxhlet_extractor&oldid=1156551464
Extraction of bioactive compounds
Review on the extraction of bioactive compounds and characterization of fruit industry by-products
Bioresources and Bioprocessing
2022-02-18
Patra, Abhipriya; Abdullah, S.; Pradhan, Rama Chandra
The by-products produced from fruit processing industries could be a potential hazard to environmental pollution. However, these by-products contain several biologically active molecules (essential fatty acid, phenolic compounds, flavonoids, coloring pigments, pectin, proteins, dietary fibers, and vitamins), which can be utilized for various applications in the food, pharmaceutical, cosmetic and textile industries. Nevertheless, during extraction, these bioactive compounds’ recovery must be maximized using proper extraction technologies, keeping both economy and environment under consideration. In addition, the characteristics of the extract obtained from those by-products depend mainly on the parameters considered during the extraction process. In this review, an overview of different technologies used to extract bioactive compounds from fruit industry by-products such as seeds and peels has been briefly discussed, along with their mechanisms, process, advantages, disadvantages, and process parameters. In addition, the characteristics of the extracted bioactive compounds have also been briefly discussed in this review.
10.1186/s40643-022-00498-3
https://doi.org/10.1186/s40643-022-00498-3
Extraction Techniques
Innovative Extraction Techniques Using Deep Eutectic Solvents and Analytical Methods for the Isolation and Characterization of Natural Bioactive Compounds from Plant Material
Plants
2020-11
Ivanović, Milena; Islamčević Razboršek, Maša; Kolar, Mitja
The growing interest of the food, pharmaceutical and cosmetics industries in naturally occurring bioactive compounds or secondary plant metabolites also leads to a growing demand for the development of new and more effective analysis and isolation techniques. The extraction of bioactive compounds from plant material has always been a challenge, accompanied by increasingly strict control requirements for the final products and a growing interest in environmental protection. However, great efforts have been made in this direction and today a considerable number of innovative extraction techniques have been developed using green, environmentally friendly solvents. These solvents include the deep eutectic solvents (DES) and their natural equivalents, the natural deep eutectic solvents (NADES). Due to their adjustable physical-chemical properties and their green character, it is expected that DES/NADES could be the most widely used solvents in the future, not only in extraction processes but also in other research areas such as catalysis, electrochemistry or organic synthesis. Consequently, this review provided an up-to-date systematic overview of the use of DES/NADES in combination with innovative extraction techniques for the isolation of bioactive compounds from various plant materials. The topicality of the field was confirmed by a detailed search on the platform WoS (Web of Science), which resulted in more than 100 original research papers on DES/NADES for bioactive compounds in the last three years. Besides the isolation of bioactive compounds from plants, different analytical methods are presented and discussed.
10.3390/plants9111428
https://www.mdpi.com/2223-7747/9/11/1428
Extraction of antioxidants
Recent advances in extraction of antioxidants from plant by-products processing industries
Food Quality and Safety
2017-03-01
Selvamuthukumaran, M; Shi, John
The by-products obtained from plant processing industries are the cheap source of bioactive compounds especially antioxidants. Extraction of bioactive compounds can be obtained by using conventional and non-conventional methods. Extraction efficiency of any conventional method mainly depends on the choice of solvents. The major challenges of conventional extraction are longer extraction time, requirement of costly and high purity solvent, evaporation of the huge amount of solvent, low extraction selectivity, and thermal decomposition of thermolabile compounds. To overcome these limitations of conventional extraction methods, new and promising extraction techniques are introduced. These techniques are referred as non-conventional extraction techniques. Therefore, in this review, some of the most promising techniques such as ultrasound-assisted extraction, pulsed electric field extraction, enzyme-assisted extraction, microwave-assisted extraction, pressurized liquid extraction, supercritical fluid extraction, pressurized low-polarity water extraction, and molecular distillation were discussed. The process systems along with industrial applications for non-conventional method of antioxidants extraction were discussed, and the comparative efficacies of different extraction methods were highlighted. Replacing conventional technologies by non-conventional ones for the extraction of valuable compounds from plant by-products processing industries has several advantages, which includes reduction of the processing time, energy consumption, and the uses of harmful and expensive solvents and increase in the extraction yields. Incorporation and development of hybrid methods should be investigated, while considering plant material characteristics and choice of compounds in future. Proper choice of standard methods also influences the measurement of extraction efficiency. The increasing economic significance of bioactive compounds and commodities rich in these bioactive compounds may lead to find out more sophisticated extraction methods in future.
10.1093/fqsafe/fyx004
https://doi.org/10.1093/fqsafe/fyx004