ArticleTropical life sciences research2025
Preliminarily Study on Hydroxyproline Content of Purple-spotted Bigeye (
Article in Tropical life sciences research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The investigation of alternative raw materials for gelatine production from fishery industry by-products has gained attention due to the increasing demand for gelatine and the importance for sustainable practices. This study aims to determine the optimal hydrochloric acid (HCl) concentration for mineral removal during pre-treatment, assess hydroxyproline content at various processing stages and characterise the resultant gelatine. The methodology involved pre-treatment of the materials with 0.1 M sodium hydroxide (NaOH) to remove non-collagen proteins, followed by mineral extraction using varying HCl concentrations (0.25, 0.5, 0.75 and 1 M). The process included swelling in 0.2% citric acid for 12 h and gelatine extraction at 65°C for 7 h. The results indicated that 0.25 M HCl was most effective for mineral removal. The hydroxyproline analysis showed an insignificant increase (0.088 mg/mL-0.103 mg/mL) from the pre-treatment stage to the final gelatine product. The physicochemical properties of the liquid gelatine, including yield (6.5 ± 0.39%), pH (6.55 ± 0.11), and gel bloom strength (174 ± 8.54 blooms) conformed to Gelatin Manufacturers Institute of America (GMIA). Functional groups confirmed the presence of gelatine-specific, such as amides A, B, I, II and III. The molecular profile is comparable to commercial gelatine, with α1 chains at 130 kDa, α2 chains at 115 kDa, and β chains at 235 kDa. The gelatine derived from the scaly skin of purple-spotted bigeye exhibits promising attributes, aligning with commercial standards and highlights the potential of fishery by-products as a sustainable and halal source of gelatine.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.