Preparation process optimization of pig bone collagen peptide-calcium chelate using response surface methodology and its structural characterization and stability analysis

Wu, Weiming; Li, He; Liang, Yanhui; Yue, Lili; Peng, Weiming; Jin, Guofeng; Ma, Meihu

doi:10.1016/j.foodchem.2019.01.103

Cited by 135 publications

(85 citation statements)

References 54 publications

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“…Pig bones were used to prepare collagen peptide-calcium chelate with calcium chelating rate of 78.38%. 22 These results are higher than that of this experiment, which may be related to the properties of raw materials and purication process. The ability of a casein hydrolysate rich in casein phosphopeptides (CPPs) to form calcium complexes was studied by Recio et al, which was similar to the study in this study.…”

Section: Single Factor Test Resultscontrasting

confidence: 68%

Preparation of sheep bone collagen peptide–calcium chelate using enzymolysis-fermentation methodology and its structural characterization and stability analysis

Wang

Zhang

et al. 2020

RSC Adv.

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Section: Single Factor Test Resultscontrasting

confidence: 68%

Preparation of sheep bone collagen peptide–calcium chelate using enzymolysis-fermentation methodology and its structural characterization and stability analysis

Wang

Zhang

et al. 2020

RSC Adv.

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“…In the region of 190–800 nm, CH showed a maximum absorption peak at 210 nm, which is normally attributed to the n → π* transition of CO in the peptide bond and the CONH 2 and COOH groups in polypeptide chains. [ 22,23 ] Additionally, ultraviolet absorption peaks located at 251 and 280 nm, where CH has obvious absorption, are generally ascribed to the conjugated double bond of phenyl rings from tryptophan, tyrosine and phenylalanine. [ 24 ] With an increase in the Zn 2+ and Mn 2+ ion concentrations, the intensity of both absorption peaks changed slightly, which implies that intermolecular interactions occur between CH and metal ions.…”

Section: Characterization Of Materials and Electrodesmentioning

confidence: 99%

Mn²⁺ Ions Confined by Electrode Microskin for Aqueous Battery beyond Intercalation Capacity

Liu

Zhi

Sedighi

et al. 2020

Advanced Energy Materials

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In aqueous rechargeable zinc–manganese dioxide batteries (ZMBs), some irreversible side reactions, such as Mn2+ dissolution, often lead to capacity fading over cycling. These side reactions play a crucial role in the capacity and cycle performance of the battery. The implementation of a bionic electrode microskin (EMS) composed of collagen hydrolysate to convert the irreversible side reactions into reversible reactions is reported. The proposed EMS effectively adsorbs and confines the Mn2+ ions around the cathode through van der Waals forces, hydrogen bonds, and/or ionic interactions, which makes the MnO2/Mn2+ reactions reversible during the charge/discharge process. Such Mn2+ dissolution reactions, with an ultrahigh theoretical capacity (617 mAh g‐1), contribute a large amount of capacity, ≈44% of the total specific capacity at a low scan rate. Based on these fundamental findings, the assembled ZMBs with an EMS display an unprecedented discharge capacity of 415 mAh g‐1 at 20 mA g‐1, which overcomes the theoretical capacity (308 mAh g‐1) limitation of the Zn2+ intercalation mechanism. More significantly, the EMS on all α‐, β‐, and γ‐MnO2 cathodes exhibits similar high capacity beyond the theoretical capacity of Zn intercalation and capacity retention enhancement after 3000 cycles.

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“…The increase in fluorescence intensity was due to the generation of electron‐giving substituents of peptide molecules under PEF treatment, which enhanced fluorescence (Wang, Liu, Xing, Li, & Yin, 2017). The decrease of fluorescence intensity was due to the internal energy transfer caused by electron transfer of peptide molecules under the PEF treatment, leading to fluorescence quenching and resulting in the decrease of fluorescence intensity (Wu et al, 2019). Wang et al (Wang et al, 2017) discovered that the fluorescence intensity of antioxidant peptides changed after being treated with PEF, and the fluorescence intensity decreased with the extension of time.…”

Section: Resultsmentioning

confidence: 99%

Tryptophan targeted pulsed electric field treatment for enhanced immune activity in pine nut peptides

Sun

Zhang

et al. 2020

J Food Biochem

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To investigate immune activity of pine nut peptides treated by PEF technology and mechanism of targeting immunoactive sitesits, immune regulatory active was evaluated by RAW 264.7 cells model and the structures of pine nut peptides were researched by fluorescence, CD, and 1D/2D NMR spectrum. These consequences showed the ability of macrophages to phagocytosis neutral red and the production of nitric oxide (NO) were improved after PEF treatment. KWFCT treated by PEF treatment with 40 kV/cm obtained the best immunocompetence. The CD spectroscopy showed that PEF could transform the secondary structures of pine nut peptides. The short‐range correlation between CγH (1.65 ppm) and CαH (3.35 ppm), and long‐range correlation between CαH (3.37 ppm) and NαH (8.07 ppm) were enhanced by PEF treatment. PEF treatment of tryptophan in the pine nut peptides enhanced the immunological activity of the pine nut peptides. Practical applications Bioactive peptides derived from food proteins have been extensively studied in recent years. However, little research has been done on the immunoactive peptide of pine nut source. PEF treatment is promising for improving certain properties of foods while maintaining the flavor, color, taste, and nutritional value of the food. This research demonstrated that PEF treatment increased the immunological activity of KWFCT and KWFM. The primary structure of KWFCT and KWFM did not change after PEF treatment, but the secondary structure was transformed into each other. A new perspective on the PEF action site is proposed, which is beneficial to the application of PEF technology.

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Preparation process optimization of pig bone collagen peptide-calcium chelate using response surface methodology and its structural characterization and stability analysis

Cited by 135 publications

References 54 publications

Preparation of sheep bone collagen peptide–calcium chelate using enzymolysis-fermentation methodology and its structural characterization and stability analysis

Preparation of sheep bone collagen peptide–calcium chelate using enzymolysis-fermentation methodology and its structural characterization and stability analysis

Mn²⁺ Ions Confined by Electrode Microskin for Aqueous Battery beyond Intercalation Capacity

Tryptophan targeted pulsed electric field treatment for enhanced immune activity in pine nut peptides

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Preparation process optimization of pig bone collagen peptide-calcium chelate using response surface methodology and its structural characterization and stability analysis

Cited by 135 publications

References 54 publications

Preparation of sheep bone collagen peptide–calcium chelate using enzymolysis-fermentation methodology and its structural characterization and stability analysis

Preparation of sheep bone collagen peptide–calcium chelate using enzymolysis-fermentation methodology and its structural characterization and stability analysis

Mn2+ Ions Confined by Electrode Microskin for Aqueous Battery beyond Intercalation Capacity

Tryptophan targeted pulsed electric field treatment for enhanced immune activity in pine nut peptides

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Product

Resources

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Mn²⁺ Ions Confined by Electrode Microskin for Aqueous Battery beyond Intercalation Capacity