{'fraction_non_alphanumeric': 0.036939313984168866, 'fraction_numerical': 0.016710642040457344, 'mean_word_length': 5.429378531073446, 'pattern_counts': {'":': 0, '<': 1, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
DEVELOPMENT OF MONOCLONAL ANTIBODIES AND QUANTITATIVE SANDWICH ENZYME LINKED IMMUNOSORBENT ASSAY FOR THE CHARACTERISTIC SIALOGLYCOPROTEIN OF EDIBLE BIRD'S NEST

The article presents a sandwich enzyme linked immunosorbent assay (ELISA) for identification of edible bird's nest. The characteristic sialoglycoproteins were found by sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and purified by liquid-phase isoelectric focusing (LIEF). According to the analysis, the molecular weight was 106–128 kDa and the isoelectric point was ≤pH 3.0. Two anti-characteristic sialoglycoprotein monoclonal antibodies were produced. The monoclonal antibodies were examined by western-blot assay. One of the monoclonal antibody was used as coating and the other as the enzyme-labeled antibody after being coupled to horseradish peroxidase (HRP). Based on the optimized ELISA condition, the method was established with IC50 of 1.5 ng/mL, and low cross-reactivity with various fake materials (<0.01%). ELISA provided a suitable means for screening of a large number of samples. The coefficients of variation were between 2.9% and 5.8%.