Characterization of Iranian Doogh Enriched with Gum Tragacanth and Fennel Extract (Foeniculum Vulgare)

IF 1.2 4区农林科学 Q2 AGRICULTURE, MULTIDISCIPLINARY Journal of Agricultural Science and Technology Pub Date : 2022-11-01 DOI:10.52547/jast.24.6.1345

S. Ghosi Hoojaghan, M. Sedaghati, N. Mooraki

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引用次数: 1

Abstract

The effect of gum tragacanth (0, and 0.15%) and Fennel ( Foeniculum vulgare ) (0, 2.5, and 5%) on the chemical and rheological properties, phase separation, Lactic Acid Bacteria ( LAB ) viability, and sensory characteristics of an Iranian dairy drink "Doogh" was investigated during 20 days of storage. Results cleared the stability of Dooghs prepared with Gum Tragacanth Dispersions (GTD) was significantly higher than samples without this hydrocolloid (P < 0.05). Doogh samples’ viscosity in the presence of Fennel Extract Powder (FEP) was increased significantly (P < 0.05). Power-law and Herschel-Bulkley rheological models were appropriate models for describing the flow behavior of control and treated Doogh samples, respectively. The results showed that by increasing the amounts of FEP, LAB viability increased while the fungi population decreased significantly (P < 0.05). Therefore, this herbal powder could stimulate LAB growth and control the fungi population in treated samples. Finally, adding GTD to the Doogh sample was proper for improving stability, and enrichment with Fennel was suitable for increasing LAB viability and microbial spoilage control.

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富含黄芪胶和茴香提取物的伊朗面团的特性研究

研究了黄芪胶(0、0.15%)和茴香胶(0、2.5、5%)对伊朗乳饮料“Doogh”的化学和流变特性、相分离、乳酸菌活力和感官特性的影响。结果表明，添加黄芪胶分散体(GTD)制备的道格的稳定性显著高于未添加该水胶体的道格(P < 0.05)。茴香提取物粉(FEP)显著提高了面团样品的黏度(P < 0.05)。幂律和Herschel-Bulkley流变模型分别是描述控制和处理过的Doogh样品流动行为的合适模型。结果表明，随着FEP添加量的增加，LAB活力显著提高(P < 0.05)，真菌数量显著降低(P < 0.05)。因此，该中草药粉能促进乳酸菌生长，控制真菌数量。最后，在Doogh样品中添加GTD有利于提高稳定性，而茴香富集有利于提高LAB活力和控制微生物腐败。

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来源期刊

Journal of Agricultural Science and Technology AGRICULTURE, MULTIDISCIPLINARY-

CiteScore

1.90

自引率

8.30%

发文量

审稿时长

4.5 months

期刊介绍： Journal of Agricultural Science and Technology is one of the TMU Press journals that is published by the responsibility of its Editor-in-Chief and Editorial Board in the determined scopes. Journal of Agricultural Science and Technology (JAST) is an international research journal published bimonthly for the purpose of advancing the scientific studies. The subjects covered by JAST include all aspects of agriculture and natural resources (see Areas Covered). The journal will consider submissions from all over the world, on research works not being published or submitted for publication towards publication as full paper, review article and research note. The Papers are published in English with an extra abstract in Persian.