Optimization of Conditions for Plastein Reaction and Its Application in Improving the Flavor of Protein Hydrolyzates from Yellowfin Tuna

نویسندگان

  • Yu-jin Zhao
  • Ye Hu
  • Hong-yu Luo
چکیده

Investigating the influence of plastein reaction on reducing the bitterness and offending smell of protein hydrolysates from yellowfin tuna offal. Protein hydrolysates of yellowfin tuna offal was prepared firstly, then the factors including pH value, kinds of enzymes, temperature and substrate concentration on influencing the nitrogen recovery and bitterness were separately evaluated and the conditions were optimized by orthogonal array design. Changing of offending smell between control and treated group was finally determined by electronic nose system. Result showed that the optimized conditions of plastein reaction were set as follows: pH 5, substrate concentration 40 %, and temperature 42 °C, which could decrease the bitterness from 7 to 1 and maintained the nitrogen recovery at a high level around 82.16 ± 0.13 % and the offending smell had a great improvement as well.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Antioxidant and Antibacterial Effect of Protein Hydrolysis of Yellowfin Tuna Waste on Flesh Quality Parameters of Minced Silver Carp

In this study, hydrolyzed protein as a natural preservative for increasing the shelf life of minced meat of silver carp (Hypophthalmichthys molitrix) was used in a refrigerator for 12 days. Hydrolyzed protein was added to the minced meat of fish, at 0.5, 1 and 1.5% concentration. In this regard, microbial, chemical and sensory tests were carried out during the period of storage at intervals of ...

متن کامل

Optimum conditions for protein extraction from tuna processing by-products using isoelectric solubilization and precipitation processes

The by-product from tuna processing is a potential source of edible protein. Therefore, it is very important to extract protein from such raw materials for human food. In this study the optimum pH for protein extraction from tuna by-products was optimized by using isoelectric solubilization and precipitation processes. The Response Surface Methodology (RSM) and the single factor model were used...

متن کامل

Optimum conditions for protein extraction from tuna processing by-products using isoelectric solubilization and precipitation processes

The by-product from tuna processing is a potential source of edible protein. Therefore, it is very important to extract protein from such raw materials for human food. In this study the optimum pH for protein extraction from tuna by-products was optimized by using isoelectric solubilization and precipitation processes. The Response Surface Methodology (RSM) and the single factor model were used...

متن کامل

Standardized CPUE of yellowfin tuna (Thunnus albacares) by General Linear Model (GLM) for Iranian Gillnet Fisheries in the Oman Sea

Yellowfin Tuna (Thunnus albacares) is one of the most important commercial and neritic fish species which has known because of ecological importance and wide distribution around the world. The aim of this study was to determine relative index of abundance for Yellowfin Tuna from 2007 to 2016, also we evaluated effect of some explanatory variables (year, month, vessel tonnage and net height) of ...

متن کامل

Length frequency, length-weight relationship and catch per unit of effort (CPUE) of Longtail tuna (Thunnus tonggol) and Yellowfin tuna (Thunnus albacares) caught by purse seine in Oman Sea

Length frequency, length-weight relationship and catch per unit of effort (CPUE) for longtail tuna and yellowfin tuna in purse seine fishing were studied in Oman Sea between July and August 2015. Length range and mean of longtail tuna were obtained 56-98 and 74.13±0.41 cm, respectively. Length range and mean of yellowfin tuna were obtained 51-128 and 74.62±0.46 cm, respectively. The length-weig...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2015