Assessment of free and bound phenolics in the flowers and floral organs of two Camellia species flower and their antioxidant activities

Xiang, Zhuoya; Xia, Chen; Feng, Shiling; Chen, Tao; Zhou, Lei; Liu, Li; Qing-bo, Kong; Yang, Hong-Chang; Ding, Chunbang

doi:10.1016/j.fbio.2022.101905

Cited by 14 publications

(22 citation statements)

References 42 publications

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“…Camellia is a traditional oil plant species in China and the camellia oil is also known as four largest woody plant oils in the world due to high content of unsaturated fatty acids (>80 %) [16] . Therefore, it has been widely cultivated in the southern part of China [17] , which could be available for production of camellia bee pollen. At present, camellia pollen has become one of the most important bee pollens that are extensively consumed in China [6] and its price is about 5 $ per kilogram.…”

Section: Introductionmentioning

confidence: 99%

Effects of ultrasound assisted cell wall disruption on physicochemical properties of camellia bee pollen protein isolates

Xue

2023

Ultrasonics Sonochemistry

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Section: Introductionmentioning

confidence: 99%

Effects of ultrasound assisted cell wall disruption on physicochemical properties of camellia bee pollen protein isolates

Xue

2023

Ultrasonics Sonochemistry

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“…), malva blanca (Althea officinalis L.), and pena pena (Fuchsia laxensis Kunth), thirteen quercetin glycoside were detected, like quercetin-O-pentoside, querecetin-O-galactoside, or methylquerce-tin-O-pentosyl-hexoside-O-hexoside [64]. Other authors have observed the abundance of quercetin and kaempferol glycosides in C. oleifera and C. polyodonta flowers [69].…”

Section: Bound and Free (Poly)phenol Profile Of Powder Flowersmentioning

confidence: 98%

Nutritional, Fatty Acids, (Poly)phenols and Technological Properties of Flower Powders from Fuchsia hybrida and Alcea rosea

Castillo-Carrión,

Martínez-Espinosa,

Pérez-Álvarez

et al. 2024

Foods

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Fuchsia hybrida (pena pena) and Alcea rosea L. (malvagoma) are predominant flowers in the “Horchata” infusion, a traditional beverage in southern Ecuador, to which some medicinal properties are attributed. However, there is very little published information about these two flower species. The current study aimed to obtain two dehydrated powders of these flowers and to determine their chemical composition, physicochemical and technological properties, polyphenols, and fatty acids profile. In both powdered flowers, carbohydrates predominated, with a significant content of dietary fiber and fructose. The fat content was low, mainly comprising polyunsaturated fats (62% pena pena and 52% malvagoma), with a significant presence of omega-3 (C18:3n-3,6,9) and omega-6 (C18:2n-6,9) fatty acids, showing a better n-6/n-3 balance in the malvagoma flowers. Pena pena flowers are highlighted by high anthocyanin and ellagic acid amounts, whereas malvagoma contains a high content of flavanones. In conclusion, the studied powder flowers, could be used in the formulation of new foods or as source of anthocyanins as food colorants.

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“…According to the retention times (Rt), major ion [M − H] − , molecular formula, and MS/MS fragment ions, a total of 11 flavonoid compounds were identified (Table 2). Representatively, compound 3, preliminarily identified as rutin, had a molecular ion at m/z 609 [M − H] − and a fragment ion at m/z 301 after the loss of a rhamnoside (146 Da) and a glucoside (162 Da) [17]. Compound 7 with a molecular ion at m/z [M − H] − 447 was identified as quercitrin, which first undergoes neutral depletion of [M-H-146] − from rhamnoside, yielding fragment ions of m/z 301, the quercetin ion.…”

Section: Identification Of Flavonoid Compounds By Uplc-q-tof-msmentioning

confidence: 99%

Natural Deep Eutectic Solvent-Based Ultrasound-Assisted Extraction of Flavonoids from Fagopyrum tataricum Bran

Xu,

Da,

et al. 2024

Separations

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In this study, eleven kinds of flavonoids were identified from F. tataricum bran (FTB) by UPLC-Q-TOF-MS, and HPLC-DAD analysis revealed that four compounds, including rutin, quercetin, kaempferol, and nicotiflorin, were the most significant components. Subsequently, natural deep eutectic solvent-based ultrasound-assisted extraction (NADES-UAE) was employed to extract flavonoids from FTB. Among the six kinds of NADES prepared, choline chloride–ethylene glycol (ChCl-EG) was identified as a promising candidate for extracting flavonoids due to its superior extraction performance. The extraction conditions were statistically investigated using response surface methodology conducted by Box-Behnken design (BBD). The optimal operational conditions were as follows: ultrasonic time 268 s, ultrasonic temperature 76 °C, and liquid–solid ratio 43 mL/g, which resulted in a high total flavonoid yield of 40.29 mg/g. Afterwards, the efficient extraction mechanism of NADES-UAE was comprehensively explored through FT-IR spectra, COSMO model, and microstructural analysis. In conclusion, NADES-UAE extraction is considered a green, efficient, and sustainable method for FTB flavonoids.

show abstract

Assessment of free and bound phenolics in the flowers and floral organs of two Camellia species flower and their antioxidant activities

Cited by 14 publications

References 42 publications

Effects of ultrasound assisted cell wall disruption on physicochemical properties of camellia bee pollen protein isolates

Effects of ultrasound assisted cell wall disruption on physicochemical properties of camellia bee pollen protein isolates

Nutritional, Fatty Acids, (Poly)phenols and Technological Properties of Flower Powders from Fuchsia hybrida and Alcea rosea

Natural Deep Eutectic Solvent-Based Ultrasound-Assisted Extraction of Flavonoids from Fagopyrum tataricum Bran

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