Effect of Low Temperature on Chlorophyll Biosynthesis and Chloroplast Biogenesis of Rice Seedlings during Greening.

Rice ( L.) frequently suffers in late spring from severe damage due to cold spells, which causes the block of chlorophyll biosynthesis during early rice seedling greening. However, the inhibitory mechanism by which this occurs is still unclear.

Extraction Optimization, Structural Characterization, and Antioxidant Activities of Polysaccharides from Cassia Seed ().

In order to explore Cassia seed polysaccharides (CSPs) as natural antioxidants for application in the functional-food industry, microwave-assisted extraction (MAE) was optimized for the extraction of CSPs by using a response surface methodology. Furthermore, the chemical structures and antioxidant activities of CSPs extracted by MAE and hot water extraction were investigated and compared. The maximum extraction yield of CSPs extracted by MAE (8.

Physicochemical characteristics and antioxidant activities of non-starch polysaccharides from different kiwifruits.

Non-starch polysaccharides are considered the main bioactive ingredients in kiwifruits. In order to well understand the chemical structures and antioxidant activities of non-starch polysaccharides from different varieties of kiwifruits (KPSs), the physicochemical characteristics and antioxidant activities of KPSs extracted by hot water extraction from Actinidia deliciosa cv. Hayward, A.

Physicochemical properties, phenolic profiles, antioxidant capacities, and inhibitory effects on digestive enzymes of okra () fruit at different maturation stages.

Phenolic compounds are considered the main bioactive components in okra fruits. In order to well understand the accumulation pattern of phenolic compounds in okra fruits during maturation, and to obtain okra fruits with high level of health-beneficial phenolic compounds, physicochemical properties, phenolic profiles, antioxidant capacities, and inhibitory effects on digestive enzymes of okra fruits at different maturation stages were investigated. Noticeable variations in physicochemical properties and phenolic profiles of okra were observed at different maturation stages.

Extraction Optimization, Physicochemical Characteristics, and Antioxidant Activities of Polysaccharides from Kiwifruit ( Planch.).

In order to evaluate effects of extraction techniques on the physicochemical characteristics and antioxidant activities of kiwifruit polysaccharides (KPS), and further explore KPS as functional food ingredients, both microwave-assisted extraction (MAE) and ultrasonic-assisted extraction (UAE) were optimized for the extraction of KPS. Furthermore, the physicochemical structures and antioxidant activities of KPS extracted by different techniques were investigated. The optimal extraction conditions of UAE and MAE for the extraction of KPS were obtained by response surface methodology.

Effects of extraction methods on the physicochemical characteristics and biological activities of polysaccharides from okra (Abelmoschus esculentus).

The impacts of three extraction techniques, including hot water extraction (HWE), pressurized water extraction (PWE), and microwave assisted extraction (MAE), on the physicochemical characteristics, antioxidant activities, in vitro binding properties, and in vitro inhibitory activities on α-amylase and α-glucosidase of okra polysaccharides (OPPs) were investigated and compared. The extraction yields, constituent monosaccharides, and FT-IR spectra of OPP-W, OPP-P, and OPP-M extracted by HWE, PWE, and MAE, respectively, were similar. However, their molecular weights, intrinsic viscosities, uronic acids, and degree of esterification were different.

Phenolic Profiles, Antioxidant Capacities, and Inhibitory Effects on Digestive Enzymes of Different Kiwifruits.

In order to obtain high-quality kiwifruits with health-promoting characteristics, physicochemical properties, phenolic profiles, antioxidant capacities, and inhibitory effects on digestive enzymes (pancreatic lipase and α-glucosidase), of fourteen different types of kiwifruit obtained from China were systematically investigated and compared. Noticeable variations in the fruits' physicochemical properties and phenolic profiles were observed among them. The total phenolic content of cv.

Efficacy and Mechanism of Cinnamon Essential Oil on Inhibition of Isolated From 'Hongyang' Kiwifruit.

In this study, one of the dominant pathogens, which caused postharvest diseases such as anthracnose, was isolated from decayed 'Hongyang' kiwifruit. It was identified as by its morphological characteristics and standard internal transcribed spacer ribosomal DNA sequence. Further, the efficacy and possible mechanism of cinnamon essential oil on inhibition of were investigated.

Extraction, antioxidant and antibacterial activities of Broussonetia papyrifera fruits polysaccharides.

Polysaccharides were extracted from Broussonetia papyrifera ((L.) L'Herit. ex Vent.