نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه علوم و صنایع غذایی، دانشکده کشاورزی، دانشگاه گیلان، رشت، ایران

2 عضو هیات علمی، گروه علوم و مهندسی صنایع غذایی، دانشگاه گیلان، رشت، ایران

10.22092/fooder.2026.371662.1440

چکیده

در سال‌های اخیر توجه به غذاهای عملکردی حاوی پروبیوتیک‌ها به‌عنوان راهکاری برای بهبود سلامت به‌طور چشمگیری افزایش یافته است. با این حال، حفظ زنده‌مانی لاکتوباسیلوس اسیدوفیلوس (LA5) در محصولات اسیدی و شور مانند ترشی فلفل هالوپینو تحت تأثیر عوامل کلیدی همچون غلظت نمک، درصد سرکه و دمای نگهداری همواره چالشی علمی مهم محسوب می‌شود. تاثیر هر یک از پارامترهای متغیر به‌طور مستقیم یا از طریق اثر متقابل، در زنده‌مانی LA5 و ویژگی­های کیفی مانند تغییرات رنگ محصول و پذیرش حسّی فلفل ترشی تخمیری نقش معنی­داری (0.05>P) دارند. غلظت‌های بالای نمک (بیش از 2.5 درصد) و pH پایین ناشی از اسیدیتۀ سرکه به‌طور چشمگیری سبب کاهش بقای سویۀ پروبیوتیک LA5 می­شود. در مقابل، نگهداری در دماهای پایین (4 تا 10 درجه سلسیوس) موجب افزایش ماندگاری سلولی می­گردد و امکان بقای LA5 را برای مدت طولانی‌تری فراهم می­آورد. نتایج حاصل از این پژوهش بر پایه مدل رگرسیونی درجه دوم نشان داد که پارامتر متغیر دما و مقدار سرکه بیشترین تأثیر را بر زنده‌مانی و کیفیت فلفل هالوپینو دارند در حالی که نمک با عملیات ثانویه اثر تعدیل در فرایند رسانیدن تخمیر نقش‌آفرینی می­کند. کنترل و ارزیابی اثرهای متقابل این متغیرها طی فرآوری فلفل هالوپینو پروبیوتیک به منظور تولید محصول با کیفیت بالا ضروری به نظر می­رسد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Optimization of Production Conditions (percentage of Vinegar, Salt Concentration, and Storage Environment) of Eermented Jalapeno Peppers with Commercial Probiotic Strain Lactobacillus acidophilus (LA5)

نویسندگان [English]

  • Fatemeh Jalili 1
  • Abbas Abedfar 2
  • Shadi Haddadizadeh 1
  • Neda Tanhaei 1

1 Department of Food Science & Technology, Faculty of Agriculture, University of Guilan, Rasht, Iran

2 Department of Food Science & Technology, University of Guilan, Rasht, Iran.

چکیده [English]

In recent years, attention to functional foods containing probiotics as a solution to improve health has increased significantly. However, maintaining the viability of Lactobacillus acidophilus (LA5) in acidic and salty products such as jalapeno pepper pickles under the influence of key factors such as salt concentration, vinegar percentage and storage temperature has always been a major scientific challenge. The effect of each variable parameter, directly or through interaction, on the viability of LA5 and quality characteristics such as product color changes as well as sensory acceptance of fermented pickled peppers played a significant role (P<0.05). High salt concentrations (more than 2.5%) and low pH due to vinegar acidity significantly reduced the viability of the probiotic strain LA5. In contrast, storage at low temperatures (4-10°C) increased cell viability and allowed LA5 to survive for a longer period. Finally, the results of this study based on the quadratic regression model showed that the variable parameters of temperature and vinegar content had the greatest effect on the viability and quality of jalapeno pepper, while salt played a role as a secondary factor with a moderating effect in the fermentation process. Therefore, controlling and evaluating the interaction effects of these variables during the processing of probiotic jalapeno pepper seems necessary in order to produce a high-quality product.

کلیدواژه‌ها [English]

  • Process optimization
  • Viability of commercial probiotic cultures
  • Fermented jalapeno pepper
  • Regression model
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