Results 51 to 60 of about 16,371 (228)

Application of astaxanthin in aquaculture

open access: yesSiliao yanjiu, 2023
Astaxanthin can improve the immune, growth performance and body color of aquatic animals, and has been widely used as a feed additive in aquaculture in recent years.
TIAN Zi-hao   +5 more
doaj  

Antihypertensive effects of astaxanthin

open access: yesIntegrated Blood Pressure Control, 2008
Astaxanthin is a biological antioxidant naturally found in a wide variety of aquatic living organisms, and has shown various pharmacological activities, such as anti-inflammatory and antidiabetic activities. A recent study reported that the administration of astaxanthin induced a significant reduction in blood pressure and delayed the incidence of ...
Yanai,Hidekatsu   +3 more
openaire   +5 more sources

Optimization of Preparation Process and Stability Investigation of Astaxanthin Vesicles

open access: yesShipin gongye ke-ji
Objective: To enhance the dispersion of astaxanthin in aqueous phases, astaxanthin-loaded vesicles were fabricated, and their stability under various environmental conditions was examined.
Chunran HAN   +3 more
doaj   +1 more source

One-step Preparation and Characterization of Water-dispersible Astaxanthin Emulsion by Tween-20 under Ultrasonic Condition

open access: yesShipin gongye ke-ji, 2023
In order to achieve sustainable extraction and enhance the properties of astaxanthin from Haematococcus pluvialis, a green and efficient approach was developed by utilizing Tween-20 under ultrasonic conditions.
Jia LI, Xiangming QI
doaj   +1 more source

Deesterification of astaxanthin and intermediate esters from Haematococcus pluvialis subjected to stress

open access: yesBiotechnology Reports, 2019
Haematococcus pluvialis is the richest biological source of astaxanthin under unfavorable growing conditions. Many reports have discussed the optimal astaxanthin extraction methods.
Janeth I. Galarza   +3 more
doaj   +1 more source

Inhalable ROS‐Responsive Nanospray Activates PPAR‐γ to Restore Macrophage Mitochondrial Homeostasis and Attenuate Radiation‐Induced Lung Injury

open access: yesAdvanced Science, EarlyView.
A nebulized nanoassembly alleviates radiation‐induced lung injury by reprogramming macrophages through coordinated ROS scavenging, NAD+ replenishment, and PPAR‐γ activation. Redox balance, mitochondrial homeostasis, and immune regulation are restored, revealing a microenvironment‐centered strategy for localized radioprotection.
Mingquan Gao   +11 more
wiley   +1 more source

The Biosynthesis of Astaxanthin-XIII

open access: yesNIPPON SUISAN GAKKAISHI, 1972
The carotenoids of crab, Portunus trituberculatus, have been separated by absorption chromatography and further characterized by their absorption spectra and their behavior on the column. In some cases, reactions for specific functional groups were performed.
Teruhisa KATAYAMA   +4 more
openaire   +3 more sources

Cobalt Single‐Atom Nanozyme for Enhanced Intestinal Radioprotection and Tumor Radiosensitization via Bidirectional ROS Modulation

open access: yesAdvanced Science, EarlyView.
Orally administered, pH‐responsive Co‐SAN exerts dual functions: in the alkaline intestinal milieu, it scavenges reactive oxygen species (ROS) and suppresses the PI3K/AKT pathway and NETs formation, thus providing radioprotection; whereas in the acidic tumor microenvironment, it generates ROS and alleviates hypoxia, thereby enhancing radiosensitization.
Shengqi Yin   +13 more
wiley   +1 more source

Oral Delivery Systems for Food‐Derived Bioactive Peptides: Enhancing Stability, Bioavailability, and Health Benefits

open access: yesAdvanced Science, EarlyView.
Advanced delivery systems—including nanoparticles, nanoemulsions, liposomes, and hydrogels—protect food‐derived bioactive peptides from gastrointestinal degradation and bitterness. These systems enable pH‐responsive release, enhance intestinal absorption, and improve therapeutic efficacy against oxidative stress, metabolic disorders, cancer, and ...
Yu Xu   +5 more
wiley   +1 more source

Fish Scales: A Multifunctional Biomaterial from Nature

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Fish scales demonstrate nature's solution to impact protection through overlapping multilayered architecture. This biological design combines mineralized surfaces with collagen networks to achieve both flexibility and fracture resistance. The structural principles inspire advanced protective materials and biomedical implants, where damage tolerance ...
Liyao Dong, Xiaojie Sun, Xiguang Chen
wiley   +1 more source

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