Journal
FOOD CHEMISTRY
Volume 347, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2021.129011
Keywords
Steam explosion; Tuna bone powder; Pulverization; Calcium bioavailability
Funding
- National Natural Science Foundation of China [31701543]
- Zhejiang Provincial Key Technologies RD Program [2017C03041]
- Zhejiang Provincial Public Welfare Technology Research Project [LGN18C200001]
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A steam explosion pretreatment method was established to prepare tuna bone powder, resulting in smaller particle size and higher calcium absorption and utilization rates in mice. This method provides a way for the deep processing and utilization of tuna bone by-product.
In this study, a steam explosion pretreatment method was established to prepare tuna bone powder. The conditions were optimized such that steam pressure of 0.6 MPa, reaction time of 5 min, and sample weight of 100 g. The result showed that steam explosion pretreatment would not change the chemical structure of bone powder, however, the median particle size (D50) of the steam explosion pretreated tuna bone powder (SE-TBP) (13.186 mu m) was significantly smaller than that of normal biological calcium tuna bone powder (N-TBP) (169.762 mu m). The calcium absorption rate (79.75 +/- 2.33%) and utilization rate (78.75% +/- 2.85%) of the mice fed with SE-TBP were both higher than those of fed with CaCO3 or N-TBP with the same calcium equivalent in the feed. The steam explosion pretreatment method could obtain ideal tuna bone powder in a shorter time, provide a method for deep processing and utilization of tuna bone by-product.
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