Article
Biochemistry & Molecular Biology
Jiaman Liu, Yanbiao Chen, Xinxin Zhang, Jie Zheng, Weiying Hu, Bo Teng
Summary: This study found that tannins from hops can effectively inhibit the activity of tyrosinase, with whitening and antioxidant activities, making them suitable as whitening agents in the cosmetics industry.
Article
Horticulture
Kamal Tyagi, Itay Maoz, Or Lapidot, Bettina Kochanek, Yael Butnaro, Meir Shlisel, Larry Lerno, Susan E. Ebeler, Amnon Lichter
Summary: This study investigates the effects of gibberellin and cytokinin on the size and composition of grapes, as well as their subsequent impact on wine attributes. The results show that these plant growth regulators can increase berry diameter and weight, but also reduce sugar accumulation and color development. Furthermore, they affect the levels of flavan-3-ols, flavonols, anthocyanins, proanthocyanidins, and fatty acid derived volatile compounds in the berries, ultimately influencing the phenolic composition of the resulting wine.
SCIENTIA HORTICULTURAE
(2022)
Article
Agricultural Engineering
Warren J. Grigsby, Charles MacIntosh
Summary: Novel thermoset tannin-based oxazolidine materials were synthesized by a one pot reaction, which can be combined with wood fibers to form composite materials with high temperature mechanical properties.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Parasitology
Berit Marie Blomstrand, Heidi Larsen Enemark, Oivind Oines, Havard Steinshamn, Inga Marie Aasen, Karl-Christian Mahnert, Kristin Marie Sorheim, Spiridoula Athanasiadou, Stig Milan Thamsborg, Ian David Woolsey
Summary: The study found that pine bark extracts containing condensed tannins have dose-dependent inhibitory effects on C. parvum, encouraging further investigation into their in vitro and in vivo effects.
PARASITOLOGY RESEARCH
(2021)
Article
Agriculture, Multidisciplinary
Xiangxin Li, Yijing Pu, Yan Xu, Jiankang Cao, Weibo Jiang
Summary: Banana condensed tannins (BCT) significantly suppress the digestion of fat and cholesterol by interacting with digestive juice components, including bile acid, lipase, cholesterol esterase, and cholesterol. The interaction is mainly through reducing the surface area of the lipid droplets exposed to enzymes, providing valuable insights into the molecular mechanisms affecting the rate and extent of lipid digestion.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2021)
Article
Forestry
Rossy Feria-Reyes, Sergio Obed Ramirez-Cruz, Faustino Ruiz-Aquino, Luis Humberto Robledo-Taboada, Marco Antonio Sanchez-Medina, Oscar Francisco Mijangos-Ricardez, Rosalio Gabriel-Parra, Mario Ernesto Suarez-Mota, Ramiro Puc-Kauil, Jhazeel Porcallo-Vargas
Summary: This study aimed to evaluate the tannin content in the bark of five pine species from a forest harvesting area in Mexico. The bark samples were extracted using ethanol or water and the tannins were quantified. Analysis techniques like FTIR, SEM, and EDX were used to identify the chemical composition and elemental analysis of the tannin extracts. The results showed that two species, Pinus patula and Pinus ayacahuite, had a higher concentration of condensed tannins in the bark.
Article
Chemistry, Multidisciplinary
Engin Deniz Parlar, Ozge Ozten, Abdulkadir Kizilaslan, Mustafa Can
Summary: Electrical and electronic waste is a major solid waste problem. In this study, an adsorbent called ATAR was synthesized by modifying the valonia tannin polymer. The ATAR showed high adsorption performance for gold(iii) ion.
REACTION CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Physical
Emanuela Mangiacapre, Franca Castiglione, Matteo D'Aristotile, Valerio Di Lisio, Alessandro Triolo, Olga Russina
Summary: Natural deep eutectic solvents (NADES) are mixtures composed by environmentally responsible components that can establish an extended hydrogen bonding network, resulting in a lower melting point. Water-based NADES, with water as a major component, show potential in various applications. However, the chemical physical properties of choline-rich mixtures, including the concentration of deep eutectic solvents, are not well established. This study characterizes water:ChCl mixtures and explores their properties across different ratios and temperatures.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Review
Agronomy
Sebastian P. Lagrange, Jennifer W. MacAdam, Juan J. Villalba
Summary: Legume forages play a crucial role in ruminant livestock production systems, as they have higher quality compared to grasses, improving intake and food conversion efficiencies and reducing environmental impacts. Bioactives such as condensed tannins also enhance energy and protein use efficiency in ruminants, with grazing tannin-containing legumes reducing bloat and improving meat quality.
Article
Food Science & Technology
Smruthi Rao, K. Ashwath Kumar, D. Indrani
Summary: A low carbohydrate and high fat (LCHF) flour was developed and studied for its rheological, bread making, nutritional, and staling characteristics in comparison to wheat flour. The results showed that LCHF flour had lower peak viscosity, dough stability, and bread volume compared to wheat flour, but the use of additive mixes improved the volume and texture of the LCHF bread. The LCHF bread displayed lower carbohydrate content, in-vitro starch digestibility and staling rate, along with higher protein, fat, and medium-chain fatty acids, making it beneficial for individuals with diabetes and obesity.
JOURNAL OF FOOD SCIENCE AND TECHNOLOGY-MYSORE
(2022)
Review
Materials Science, Multidisciplinary
Pritam V. Dhawale, S. K. Vineeth, Ravindra V. Gadhave, Jabeen Fatima M. J., Mrudul Vijay Supekar, Vijay Kumar Thakur, Prasanth Raghavan
Summary: This article reviews the rapid development and innovation in the field of bio-based adhesives as alternatives for petrochemical adhesives. Tannin, as a renewable resource, has gained increasing attention due to its renewability, sustainability, and lower cost. The article highlights the chemistry of tannin, its usefulness, and its compatibility in synthesizing bio-based adhesives compared to hydrocarbon-derived counterparts. Furthermore, the article discusses tannin as a raw material for preparing different types of adhesives. Further exploration of chemical modification can make tannin a potential candidate to compete with petrochemical-based adhesives.
MATERIALS ADVANCES
(2022)
Article
Chemistry, Multidisciplinary
Nadezhda M. Mikova, Ivan P. Ivanov, Anatoliy M. Zhizhaev, Svetlana A. Kuznetsova, Boris N. Kuznetsov
Summary: The carbon gels were obtained by carbonizing organic gels synthesized from formaldehyde with larch bark tannins and pine cellulose. The introduction of cellulose into the gel composition affected the porous structure of the carbon gels, including specific surface area, total pore volume, micropore surface area, micropore volume, and average pore diameter. The addition of dissolved cellulose and cellulose aerogel powder promoted the development of mesopores and micropores in the resulting carbon gels, respectively. The surface morphology of the carbon gels could be controlled by varying the cellulose concentration and state during gel synthesis.
JOURNAL OF SIBERIAN FEDERAL UNIVERSITY-CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Nadezhda M. Mikova, Ivan P. Ivanov, Anatoliy M. Zhizhaev, Ol'gaYu. Fetisova, Boris N. Kuznetsov
Summary: A new method for synthesizing mixed organic gels using larch bark tannins, pine wood cellulose, and formaldehyde has been developed. The cellulose content has an effect on the morphology, porous structure, thermochemical properties, and adsorption properties of the tannin-cellulose gels. Adding cellulose solution during the synthesis increases the specific surface area and mesopore volume of the gels, while decreasing their apparent density.
JOURNAL OF SIBERIAN FEDERAL UNIVERSITY-CHEMISTRY
(2022)