Analytical Methods for Bioactive Compounds in Teas

2008 ◽  
pp. 77-110
Author(s):  
Mingfu Wang ◽  
Jiajun Wu ◽  
Chi-Chun Wong ◽  
Zongping Zheng ◽  
Xiaofang Peng ◽  
...  
Keyword(s):  
Bioactive Compounds ◽  
Analytical Methods

scholarly journals The Application of NMR Spectroscopy and Chemometrics in Authentication of Spices

Molecules ◽  
2021 ◽  
Vol 26 (2) ◽  
pp. 382
Author(s):  
Barbara Pacholczyk-Sienicka ◽  
Grzegorz Ciepielowski ◽  
Łukasz Albrecht
Keyword(s):  
Quality Assurance ◽  
Nmr Spectroscopy ◽  
Sample Preparation ◽  
Bioactive Compounds ◽  
Analytical Methods ◽  
Structural Information ◽  
Chemometric Analysis ◽  
Spectroscopic Methods ◽  
Regular Consumption ◽  
No Sample Preparation

Spices and herbs are among the most commonly adulterated food types. This is because spices are widely used to process food. Spices not only enhance the flavor and taste of food, but they are also sources of numerous bioactive compounds that are significantly beneficial for health. The healing effects of spices are connected with their antimicrobial, anti-inflammatory and carminative properties. However, regular consumption of adulterated spices may cause fatal damage to our system because adulterants in most cases are unhealthy. For that reason, the appropriate analytical methods are necessary for quality assurance and to ensure the authenticity of spices. Spectroscopic methods are gaining interest as they are fast, require little or no sample preparation, and provide rich structural information. This review provides an overview of the application of NMR spectroscopy combined with chemometric analysis to determine the quality and adulteration of spices.

scholarly journals Analytical Methods for Determining Bioavailability and Bioaccessibility of Bioactive Compounds from Fruits and Vegetables: A Review

2014 ◽  
Vol 13 (2) ◽  
pp. 155-171 ◽  
Author(s):  
Juana M. Carbonell-Capella ◽  
Magdalena Buniowska ◽  
Francisco J. Barba ◽  
María J. Esteve ◽  
Ana. Frígola
Keyword(s):  
Bioactive Compounds ◽  
Analytical Methods ◽  
Fruits And Vegetables

scholarly journals Calotropis gigantea Linn. - An Indian Traditional Medicine Treasure

2021 ◽  
Vol 68 (1) ◽  
Author(s):  
Ghegade R. Y ◽  
Aher A. N
Keyword(s):  
Wound Healing ◽  
Sri Lanka ◽  
Traditional Medicine ◽  
Bioactive Compounds ◽  
Analytical Methods ◽  
Calotropis Gigantea ◽  
Valuable Source ◽  
Weed Plant ◽  
Medicinal Properties ◽  
Therapeutic Compounds

Calotropis belongs to two species, the majority of which are native to India, Indonesia, Malaysia, Thailand, and Sri Lanka. Calotropis gigantea, also known as giant milk weed plant that grows in large quantities, is a member of the Apocynaceae (Asclepidiaceae) family of latex-producing plants. Traditionally C. gigantea is used to treat a variety of diseases and ethno-medicinal claims. In the last few decades, sophisticated analytical methods have been used to study C. gigantea for its medicinal properties and a number of bioactive compounds have been isolated and analyzed from various parts of the plant. Analgesic, antimicrobial, antioxidant, anti-pyretic, insecticidal, cytotoxic, hepatoprotective, pregnancy-interrupting, purgative, procoagulant, and wound-healing properties have been identified and found to be effective which make it a valuable source of therapeutic compounds. This review attempts to cover ethnobotany, pharmacology, phytochemistry, and phytopharmacological activities of C. gigantea.

Application of Analytical Methods for the Determination of Bioactive Compounds in Some Berries

2012 ◽  
Vol 6 (2) ◽  
pp. 432-444 ◽  
Author(s):  
Shela Gorinstein ◽  
Patricia Arancibia-Avila ◽  
Fernando Toledo ◽  
Jacek Namiesnik ◽  
Hanna Leontowicz ◽  
...  
Keyword(s):  
Bioactive Compounds ◽  
Analytical Methods

scholarly journals Innovative Extraction Techniques Using Deep Eutectic Solvents and Analytical Methods for the Isolation and Characterization of Natural Bioactive Compounds from Plant Material

Plants ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1428 ◽  
Author(s):  
Milena Ivanović ◽  
Maša Islamčević Razboršek ◽  
Mitja Kolar
Keyword(s):  
Bioactive Compounds ◽  
Analytical Methods ◽  
Plant Material ◽  
Deep Eutectic Solvents ◽  
Original Research ◽  
Extraction Techniques ◽  
Plant Metabolites ◽  
Plant Materials ◽  
Isolation And Characterization ◽  
Natural Deep Eutectic Solvents

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.

Analytical methods for the study of bioactive compounds from medicinally used Echinacea species

2018 ◽  
Vol 160 ◽  
pp. 443-477 ◽  
Author(s):  
Renato Bruni ◽  
Virginia Brighenti ◽  
Lindsay K. Caesar ◽  
Davide Bertelli ◽  
Nadja B. Cech ◽  
...  
Keyword(s):  
Bioactive Compounds ◽  
Analytical Methods

scholarly journals Analytical methods applied for the characterization and the determination of bioactive compounds in coffee

2014 ◽  
Vol 240 (1) ◽  
pp. 19-31 ◽  
Author(s):  
Magdalena Jeszka-Skowron ◽  
Agnieszka Zgoła-Grześkowiak ◽  
Tomasz Grześkowiak
Keyword(s):  
Bioactive Compounds ◽  
Analytical Methods

Stereo modeling of HVEM specimens by serial tilting and computer graphics

1986 ◽  
Vol 44 ◽  
pp. 34-35
Author(s):  
J.R. McIntosh ◽  
D.L. Stemple ◽  
William Bishop ◽  
G.W. Hannaway
Keyword(s):  
Computer Graphics ◽  
Analytical Methods ◽  
Photographic Film ◽  
Complex Structures ◽  
Multiple Objects ◽  
Multiple Images ◽  
3 Dimensional

EM specimens often contain 3-dimensional information that is lost during micrography on a single photographic film. Two images of one specimen at appropriate orientations give a stereo view, but complex structures composed of multiple objects of graded density that superimpose in each projection are often difficult to decipher in stereo. Several analytical methods for 3-D reconstruction from multiple images of a serially tilted specimen are available, but they are all time-consuming and computationally intense.

Sign in / Sign up

Export Citation Format

Share Document