Effect of electron beam irradiation treatment on the in vitro digestibility and structure of egg white protein powder

Mengling HUANG; Yun LIU

doi:10.11889/j.1000-3436.2022-0051

Journals >Journal of Radiation Research and Radiation Processing >Volume 40 >Issue 5 >Page 050401 > Article

Journal of Radiation Research and Radiation Processing
Vol. 40, Issue 5, 050401 (2022)

Effect of electron beam irradiation treatment on the in vitro digestibility and structure of egg white protein powder

Mengling HUANG and Yun LIU^*

Author Affiliations

College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China

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DOI: 10.11889/j.1000-3436.2022-0051 Cite this Article

Mengling HUANG, Yun LIU. Effect of electron beam irradiation treatment on the in vitro digestibility and structure of egg white protein powder[J]. Journal of Radiation Research and Radiation Processing, 2022, 40(5): 050401 Copy Citation Text

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Fig. 1. Effect of EBI pretreatment with different doses on in vitro digestibility of EWP

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Fig. 2. Effects of EBI pretreatment with different doses on surface hydrophobicity of EWP digested solution (color online)

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Fig. 3. SDS-PAGE of EWP digestion solution at different EBI doses. M represents marker; 0，1，2，3，4 represents EWP digestion solution at 0 kGy, 5 kGy, 10 kGy, 50 kGy, and 100 kGy EBI doses, respectively

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吸收剂量 / kGy Absorbed dose	•OH清除能力 / % •OH radical scavenging activity	ABTS•^＋清除能力 / % ABTS•⁺ radical scavenging activity	Fe²⁺螯合能力 / % Fe²⁺ chelation ability
0	41.38±0.20^d	86.57±0.36	84.36±0.13
5	30.76±0.99^f	82.91±0.14	83.56±0.13
10	32.86±0.19^ef	80.76±0.14	77.73±0.13
20	41.22±0.82^d	87.08±0.26	82.06±0.22
30	43.26±0.30^c	84.50±0.13	81.54±0.13
50	47.95±0.04^a	83.45±0.13	76.26±0.14
70	46.16±0.02^b	85.01±0.14	81.54±0.14
100	39.94±0.02^de	84.05±0.14	83.59±0.13

Table 1. Effects of EBI pretreatmnet with different doses on antioxidant ability of EWP digestibility solution

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吸收剂量 / kGy Absorbed dose	α-螺旋 / % α-Helix	β-折叠 / % β-Sheet	β-转角 / % β-Turn	无规则卷曲 / % Random coil
0	5.44	32.07	15.32	47.18
5	7.38	30.90	14.26	47.46
10	6.23	31.36	15.78	46.63
20	2.38	37.85	14.45	45.32
30	3.64	37.30	14.33	44.72
50	5.20	32.98	14.34	47.49
70	6.50	30.78	14.86	47.85
100	7.70	29.96	15.18	47.15

Table 2. Effects of EBI pretreatment with different doses on the secondary structure of EWP

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