بهینه‌سازی فرمولاسیون نان باگت با گانودرما لوسیدوم (Ganoderma leucidum)

نوع مقاله : مقاله پژوهشی

نویسندگان

• سعید عزیزخانی
• لیلا ناطقی

گروه علوم و صنایع غذایی، واحد ورامین– پیشوا، دانشگاه آزاد اسلامی، ورامین، ایران.

https://doi.org/10.22067/ifstrj.2022.73383.1109

چکیده

امروزه خواص زیست فعال بسیاری از قارچ‌ها به اثبات رسیده است. یکی از قارچ‌هایی که به‌لحاظ دارا بودن خواص درمانی متعدد به‌عنوان بهترین قارچ دارویی نام‌گذاری شده است قارچ گانودرما لوسیدوم (Ganoderma leucidum) است. از آنجا که تولید و مصرف مواد غذایی رژیمی و فراسودمند رو به افزایش است و با توجه به وجود ترکیبات فراسودمند موجود در قارچ گانودرما، این قارچ می‌تواند گزینه‌ای مناسب جهت تولید محصولات غذایی فراسودمند به حساب آید. لذا هدف از این تحقیق بررسی امکان غنی‌سازی نان باگت با قارچ گانودرما در سطوح (5/0، 1، 5/1، 2 و 5/2 درصد) به جای آرد و بررسی ویژگی‌های فیزیکوشیمیایی (درصد خاکستر، رطوبت، فیبر، اسیدیته و pH)، خواص رئولوژیکی (شاخص‌های مقاومت خمیر، طول کشیده شدن خمیر، کشش‌پذیری خمیر، ضریب ایندکس، الاستیسیته، زمان پایداری خمیر و انرژی پخت)، بافت‌سنجی (پیوستگی، فنریت، صمغیت، قابلیت جویدن، چسبندگی و سختی)، ترکیبات فنلی، بیاتی نان، خواص میکروبی (کپک و کلی‌فرم) و حسی آن بود. بررسی خواص فیزیکوشیمیایی نشان داد با افزایش میزان قارچ گانودرما سطح 5/2 درصد در آرد نان باگت، شاخص‌های خاکستر، رطوبت، فیبر و اسیدیته افزایش و شاخص‌ pH کاهش یافت. بررسی خواص رئولوژیکی خمیر نشان داد درصدهای مختلف قارچ گانودرما لوسیدوم بر تمامی شاخص‌های رئولوژیکی خمیر معنی‏دار بود (05/0≥p) و افزودن قارچ باعث کاهش مقادیر شاخص‌های فوق گردید. نتایج بررسی بافت‌سنجی نشان داد با افزایش مقدار قارچ گانودرما لوسیدوم تا سطح 5/2 درصد، شاخص پیوستگی، فنریت، صمغیت، قابلیت جویدن و سختی نمونه‌ها کاهش و شاخص چسبندگی افزایش یافت. مطابق با نتایج افزودن قارچ و افزایش میزان آن تا سطح 5/2 درصد باعث افزایش معنی‌دار ترکیبات فنلی و فیبر در نمونه‌های نان گردید (05/0≥p). نتایج ارزیابی میکروبی نشان داد با افزایش قارچ به نان باگت و افزایش میزان آن تعداد کلی فرم‌ها و کپک در تیمارها به صورت معنی‌دار کاهش یافت (05/0≥p). بررسی نتایج ارزیابی حسی نشان داد افزایش قارچ تا میزان 5/2 درصد به نمونه‏های نان باگت باعث اندکی کاهش در امتیاز مزه، رنگ، بو و پذیرش کلی در مقایسه با نمونه شاهد گردید. با توجه به نتایج می‌توان تا 2 درصد به نان باگت قارچ اضافه نمود و از میزان بالاتر فیبر، ترکیبات فنلی، بیاتی و بار میکروبی کمتر آن در نان باگت بهره جست بدون اینکه اثر نامطلوب روی خواص حسی آن داشته باشد.

کلیدواژه‌ها

• غنی‌سازی
• نان باگت
• قارچ گانودرما لوسیدوم
• Ganoderma leucidum

موضوعات

• شیمی مواد غذایی

عنوان مقاله [English]

Formulation optimization of baguette containing Ganoderma leucidum

نویسندگان [English]

• Saeid Azizkhani
• Leila Nateghi

, Department of Food Science and Technology, Varamin-pishva Branch, Islamic Azad University, Varamin, Iran.

چکیده [English]

 
[1]Introduction: Nowadays, production and consumption of functional and dietary foods have increased. Today, the medicinal, antibacterial and antioxidant properties of fungi have been proven. Ganoderma lucidum is one of the fungi that has been known as the best medicinal fungus due to its various health benefits. Ganoderma lucidum is an annual medicinal fungus which belongs to the Ganodermataceae family. G. lucidum also known as Reishi in Japan, Ling-zhi in China, Ling chih, and Ling chi mushroom in other countries. It is popular among consumers in Japan and is widely used by Asian physicians and herbalists. This medicinal mushroom has been used in Asia for thousands of years to increase energy, stimulate the immune system, and promote health and longevity. In the US, G. lucidum is included in the American Herbal Pharmacopoeia and usually recommended for its immune-supporting effects. In Poland and other countries outside Asia, G. lucidum is used as a daily food supplement that adapts itself to correct imbalances in the body. Influenced by an increasing number of studies on G. lucidum, modern application of G. lucidum include but not limited to treatment of coronary heart disease, arteriosclerosis, hepatitis, arthritis, nephritis, bronchitis, hypertension, cancer and gastric ulcers. The major chemical constituents of G. lucidum are polysaccharides, triterpenes, sterols, lectins and some proteins having beneficial properties for the prevention and treatment of a variety of ailments. Both triterpenes and polysaccharides contain anticancer properties thus making them important nominees for the researches. Spores, fruiting body and mycelium have been investigated for biological active compounds. Ganoderma lucidum is a kind of mushroom known to have various therapeutic properties such as lowering high blood sugar and high blood pressure, boosting the immune system as well as its antibacterial and antioxidant effects.
In recent years, a number of researches were performed for the identification of biological compounds and medicinal properties of Ganoderma lucidum.
 
Materials and Methods: In this study, baguette bread with 0.5, 1, 1.5, 2 and 2.5 % Ganoderma lucidum powder was used in baguette bread formulation. The aim of this study was to investigate the possibility of enriching baguette bread using Ganoderma lucidum and to investigate the physicochemical, rheological, texture analysing, microbial, stale and sensory evaluation properties. Therefore, 5 treatments were designed with a control treatment and tests were performed on the treatments in three replications. In order to analyze the data, one-way ANOVA analysis of variance and Duncan at 95% confidence level were used in Minitab 16 software.
 
Results and Discussion: Examination of the rheological properties of the dough showed that different percentages of Ganoderma lucidum significantly affect the rheological characteristics of the dough (p≤0.05) and addition of  Ganoderma lucidum reduced the above indices. According to the results, addition of Ganoderma lucidum caused a significant increase (p≤0.05) of phenolic compounds and fiber in bread samples. The results of microbial evaluation showed that with increasing Ganoderma lucidum level in baguette bread, the number of coliforms and molds in the treatments decreased significantly (p≤0.05). The results of sensory evaluation showed that the increase of Ganoderma lucidum level in baguette samples caused a slight decrease in taste, color, odor and general acceptance compared to the control sample.
Fungi are rich in protein, pigment, carbohydrates, fatty acids, vitamins and minerals that can be used in food enrichment. Due to the growing human tendency to use natural substances, fungi can be a suitable source to meet this need. According to the results, up to 2.5 % of Ganordama lucidum can be added to baguette bread formula and higher fiber content, more phenolic compounds, more freshness, less microbial load in baguette bread were obtained without having an adverse effect on its sensory properties. Therefore, the treatment mentioned in this study was selected as the best treatment in terms of safety, health and quality properties.

کلیدواژه‌ها [English]

• Ganoderma lucidum
• enrichment
• baguette
• phenolic compounds

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