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Improving the nutritional quality of cereals and legumes by germination 通过发芽提高谷物和豆类的营养品质
4区 农林科学 Q3 Agricultural and Biological Sciences Pub Date : 2023-10-30 DOI: 10.17221/44/2023-cjfs
Ayşe Seda Şenlik, Derya Alkan

Cereal and legume grains are germinated to improve their nutritional and sensory qualities. This study investigated the effect of germination on the physicochemical properties of some grains and legumes grown in Turkey. At the end of the germination for 48 h and 96 h at 24 ±Â 1 °C, carbohydrate, protein, lipid, dietary fibre, dry matter, ash, total phenolic content, antioxidant capacity and colour analyses of the germinated grains were determined. The results indicated that the germination process increased the phenolic content of all samples. The legume seeds' 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity significantly increased with germination. The germination process significantly decreased the total carbohydrate contents of the samples. A statistically significant decrease was found for the protein content of barley and corn, especially by 48 h of germination. The lipid content of cereal grains decreased as germination progressed. It might be recommended to improve the functional properties of cereals and legumes by germination and their use in the food industry.
谷物和豆类谷物发芽toÂ提高他们的营养和感官品质。本研究考察了对ofÂ发芽onÂ一些谷物和豆类生长的理化性质ofÂ的影响inÂ土耳其。AtÂ末ofÂ萌发48 h和96 h at 24± 1 Â℃,测定萌发后籽粒的碳水化合物、蛋白质、脂肪、膳食纤维、干物质、灰分、总酚含量、抗氧化能力和颜色分析ofÂ。结果表明,萌发过程提高了酚类物质含量ofÂ所有样品。豆科种子对2,2-二苯基-1-吡啶酰肼(DPPH)自由基的清除能力随着萌发而显著增强。萌发过程显著降低了样品的总碳水化合物含量ofÂ。ofÂ大麦和玉米的蛋白质含量显著降低,特别是byÂ萌发48 h ofÂ后蛋白质含量降低。籽粒脂质含量ofÂ降低asÂ发芽进展。ItÂ可能beÂ建议toÂ改善功能特性ofÂ谷物和豆类byÂ发芽及其使用inÂ食品工业。
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引用次数: 0
Refined approach to the evaluation of heat resistance applied to Enterobacteriaceae in cheese stretching 干酪拉伸中肠杆菌科耐热性评价的改进方法
4区 农林科学 Q3 Agricultural and Biological Sciences Pub Date : 2023-10-30 DOI: 10.17221/83/2023-cjfs
Irena Němečková, Šárka Trešlová, Eliška Lešková
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引用次数: 0
Ultra-high-pressure technology for preservation of fresh Aquatic foods: A review 水产鲜食材超高压保鲜技术研究进展
4区 农林科学 Q3 Agricultural and Biological Sciences Pub Date : 2023-10-30 DOI: 10.17221/87/2023-cjfs
Jiakun Peng, Chune Liu, Kaikai Bai, Shaohua Xing, Feng Liu
Aquatic foods such as fish, shrimp, and shellfish are important human nutrient sources. However, aquatic foods spoil quickly during processing and storage due to spoilage bacteria and endogenous enzymes. Ultra-high-pressure (UHP) technology, as an advanced non-thermal treatment method, is an effective preservation technique for aquatic foods. The mechanism of UHP technology is to destroy non-covalent bonds by UHP, which leads to the change of cell membrane permeability and the destruction of high-level structure of proteins, making apoptosis and enzyme inactivation. The technology can effectively sterilise and preserve food's colour, taste and nutritional value. The paper provides an introduction to the working principles, types, sources and equipment and describes the progress of the research and application of UHP technology in pascalisation, enzyme inactivation, parasite inactivation and quality modification of aquatic products. Potential limitations and prospects of the technology are also outlined. We hope to lay the theoretical groundwork for using this technique in aquatic product processing and provide guidance for its application in industrial production.
水产食品如asÂ鱼、虾和贝类是人类重要的营养来源。然而,由于toÂ腐败细菌和内源性酶,水产食品在加工和储存过程中很快就会变质。超高压(UHP)技术,as anÂ先进的非热处理方法,is anÂ水产食品的有效保鲜技术。其机制of UHP技术is toÂ破坏非共价键by UHP,导致toÂ改变ofÂ细胞膜通透性,破坏ofÂ高阶结构ofÂ蛋白,使细胞凋亡和酶失活。这项技术可以有效地消毒并保存食物的颜色、味道和营养价值。本文提供anÂ介绍toÂ工作原理、类型、来源和设备,并叙述了ofÂ超高压技术的研究和应用进展ofÂ超高压技术in pascalisation、酶灭活、寄生虫灭活和品质改性ofÂ水产品。潜在的局限性和前景ofÂ也概述了该技术。WeÂ希望toÂ为该技术的应用奠定理论基础inÂ水产品加工并为其应用提供指导inÂ工业生产。
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引用次数: 0
The effect of different cooking methods on the antioxidant activity of wild Swiss chard (Beta vulgaris L. var. cicla) 不同蒸煮方法对野生瑞士甜菜抗氧化活性的影响
4区 农林科学 Q3 Agricultural and Biological Sciences Pub Date : 2023-10-30 DOI: 10.17221/114/2023-cjfs
Yagmur Demirel Ozbek, Ozlem Saral
This study aimed to investigate the effects of different cooking methods (boiling for 5 min and 8 min, microwave cooking for 3.5 min and 6.5 min, and stir-fry for 5 min and 10 min) on wild chard's antioxidant activity and total phenolic content. It was determined that the total phenolic content [1 552.00 ±Â 299.82 mg GAE·(100 g)–1, GAE – gallic acid equivalents] increased in 3.5 min in the microwave [2 611.33 ±Â 311.76 mg GAE·(100 g)–1] and 5 min in stir-frying [2 434.33 ±Â 197.75 mg GAE·(100 g)–1] compared to the raw chard samples (P < 0.05). Two different antioxidant activity determination methods [2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity and ferric reducing antioxidant power (FRAP)] were used in the study. In both methods, it was determined that antioxidant activity decreased in the 10-min application of stir-frying. In contrast, the antioxidant activity increased by applying 3.5 min and 6.5 min in the microwave (P < 0.05). As a result, it was found that the antioxidant activity and total phenol content of wild chard changed when the cooking method and time were changed.
本研究旨在toÂ考察ofÂ不同烹饪方法(煮5 min和8 min,微波煮3.5 min和6.5 min,炒5 min和10 min) onÂ对野生甜菜抗氧化活性和总酚含量的影响。ItA是决定总酚含量[1 552.00±299.82公司GAE·(100克),盖亚-没食子酸当量)增加在3.5分钟在微波[2 611.33±311.76公司GAE·(100克)1]和5分钟在炒[2 434.33±197.75公司GAE·(100克)1]相比toA原始甜菜样本(PA < 0.05)。采用两种不同的抗氧化活性测定方法[2,2-二苯基-1-吡啶酰肼(DPPH)自由基清除活性和铁还原抗氧化能力(FRAP)] inÂ进行研究。InÂ两种方法,itÂ测定抗氧化活性降低in 10分钟应用ofÂ炒。InÂ相比之下,微波处理3.5 min和6.5 min时,其抗氧化活性分别提高byÂ和min in (P < 0.05)。As aÂ结果,itÂ发现野生甜菜的抗氧化活性和总酚含量ofÂ随着烹饪方法和时间的变化而变化。
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引用次数: 0
Physical, mechanical, and antioxidant properties of alginate/pectin edible films with incorporated chokeberry and wild thyme extracts 海藻酸盐/果胶可食用薄膜的物理、机械和抗氧化性能,并加入了苦莓和野生百里香提取物
4区 农林科学 Q3 Agricultural and Biological Sciences Pub Date : 2023-10-30 DOI: 10.17221/94/2023-cjfs
Svetla Maksimova Dyankova, Ayten Osman Solak
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引用次数: 0
Water activity of Czech dry-cured meat products: Influence of sampling point and sample preparation method 捷克干腌肉制品的水活度:采样点和制样方法的影响
4区 农林科学 Q3 Agricultural and Biological Sciences Pub Date : 2023-10-30 DOI: 10.17221/99/2023-cjfs
Filip Beňo, Jan Kostlán, Jan Pivoňka, Václav Pohůnek, Rudolf Ševčík
Water activity (aw) is a key factor influencing dry-cured meat products' safety. However, the standards for determining aw do not specify how the laboratory sample for self-analysis should be prepared and adjusted for determination in this type of food. This work aimed to verify whether the place of sampling and method of sample preparation of dry-cured meat products can influence the measured value of aw. For this purpose, samples of dry-cured heat-treated and fermented meat products were purchased from the local market. Samples before analysis were taken from the edges and centre of the meat products, and preparation consisted of: i) homogenisation; ii) dicing (4 × 4 × 4 mm); iii) slicing. The results of this work indicate that aw is significantly affected by both the part of the product from which the sample is taken and the method of preparation of the sample itself (P < 0.05). The highest measured values of aw were determined in samples prepared by slicing, and the lowest values were determined in homogenised samples. The place of sampling significantly affects the aw, especially for dry-cured heat-treated products.
水分活度(aw) is aÂ是影响干腌肉制品安全性的关键因素。但是,测定aw doÂ的标准没有规定用于自我分析的实验室样品应如何beÂ制备和调整以测定inÂ这类ofÂ食品。本工作旨在toÂ验证ofÂ采样地点和ofÂ样品制备方法ofÂ干腌肉制品是否会影响测量值of aw。为此,从当地市场购买了ofÂ干腌、热处理和发酵肉制品样品。分析前的样品取自肉类制品的边缘和中心ofÂ,准备工作包括:i)Â均质;Ii)Â切丁(4 × 4 × 4毫米);3)切片。这项工作的结果表明,那边isA显著影响面试官都的部分的产品的样本isA采取和的方法制备样品本身(< 0.05)。最高测量值of awÂ为inÂ制备样品byÂ切片,最低测量值为inÂ均质样品。地点ofÂ采样显著影响the aw,特别是对干固化热处理产品。
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引用次数: 0
Quality characteristics and antioxidant activity of goat milk yoghurt fortified with Lycium ruthenicum Murr. fruit 枸杞强化山羊奶酸奶的品质特性及抗氧化活性。水果
4区 农林科学 Q3 Agricultural and Biological Sciences Pub Date : 2023-10-29 DOI: 10.17221/77/2023-cjfs
Kongyang Wu, Jiafei Huang, Panpan Bu, Hang Gao, Tongxiang Yang, Mingyan Shi, Jianming Han, Yilin Fan

This study aimed to analyse the influence of adding Lycium ruthenicum Murr. fruit (LRF) on physicochemical, sensory characteristics and antioxidant capacity in goat milk yoghurt (GMY) during 21 days of refrigerated storage. Three different yoghurt formulations were processed using varying amounts of added LRF (1.0, 1.5, and 2.0%). LRF supplementation improved some of the physicochemical characteristics and sensory characteristics of GMY. With the increase of LRF addition, the pH of GMY showed a downward trend, and the titrated acidity showed an upward trend. The corresponding number of colonies in the storage period was higher than that of yoghurt without LRF. The addition of a concentration of 1.0–2.0% LRF played a role in the proliferation of lactic acid bacteria, and viscosity and hardness increased with increasing LRF addition. Although the susceptibility to syneresis of GMY showed a downward trend with increasing LRF addition, the scavenging rate of DPPH (2,2-diphenyl-1-picrylhydrazyl), •OH (hydroxyl free radicals), and the reducing power of Fe3+ of the corresponding concentration of GMY increased. In general, GMY with LRF addition can combine the two nutrients and have higher nutritional value, which is a good supplement to the same types of products in the market.
本研究旨在toÂ分析添加枸杞对ofÂ的影响。水果(LRF) onÂ物理化学、感官特性和抗氧化能力inÂ山羊奶酸奶(GMY) 21Â天冷藏ofÂ。三种不同的酸奶配方使用不同的ofÂ添加量LRFÂ(1.0, 1.5和2.0%)进行加工。添加LRF改善了部分ofÂ理化特性和感官特性of GMY。随着of LRF添加量的增加,pH of GMY呈aÂ下降趋势,滴定酸度呈anÂ上升趋势。相应菌落数of inÂ贮藏期高于未添加LRF的ofÂ酸奶。添加of aÂ浓度of 1.0 ~ 2.0% LRF对inÂ乳酸菌增殖ofÂ起aÂ作用,且随着LRF添加量的增加,其粘度和硬度增大。虽然随着LRF添加量的增加,其敏感性toÂ协同作用of GMY呈aÂ下降趋势,但相应浓度of GMY的清除率of DPPHÂ(2,2-二苯基-1-吡啶肼基)、•OH(羟基自由基)和还原力of Fe3+Â均有所增加。InÂ一般来说,GMY与LRF的添加可以将两种营养素结合起来,具有更高的营养价值,这is aÂ很好地补充了toÂ同类型ofÂ产品inÂ市场。
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引用次数: 0
Investigate the mystery of Baijiu production region - Environmental factors for Luzhou (Sichuan, China) 探究白酒产区之谜——泸州(中国四川)环境因素
4区 农林科学 Q3 Agricultural and Biological Sciences Pub Date : 2023-10-23 DOI: 10.17221/72/2023-cjfs
Guo Qingyan, Tang Yurun, Zhao Fan, Liu Ying, Tian Lei, He Zongjun, Guan Tongwei

With a long tradition of brewing history, Chinese strong-flavour Baijiu (SFB) developed prosperously in the southwest, especially in Luzhou, and has existed for more than 300 years building craftwork and brewing techniques. As a product of the distillation of fermented grains, its production involves many microbial communities. During this time, microbial communities within production have burgeoned and evolved throughout the development history, enhancing unique texture and flavour. Meanwhile, environmental factors are critical constituents in the production, which provide the optimal conditions for processing procedures and various microorganisms, including externally controlled macro-environment and micro-environment of fermentation. By studying the correlation with environmental factors from macro and micro perspectives, we illustrated the bond with environmental symbiotic and holistic patterns of the intrinsic microbial community and fermentation characteristics. This review is essential to study and control the whole ecological conditions of the Baijiu fermentation process, aiming to gain insight into the dynamics of the microorganisms and ensure a traditional fermentation environment for quality control.
中国白酒(SFB)有着aÂ悠久的传统ofÂ酿造历史,其兴盛于inÂ西南地区,特别是inÂ泸州,至今已有300多年的建筑工艺和酿造技术。As aÂ产品ofÂ为蒸馏ofÂ发酵谷物,其生产涉及许多微生物群落。在此期间,生产中的微生物群落在整个发展历史中迅速发展和演变,增强了独特的质地和风味。同时,环境因素是生产的关键组成部分inÂ,它为加工过程和各种微生物提供了最佳条件,包括外部控制的宏观环境和微观环境ofÂ发酵。ByÂ从宏观和微观两个角度研究与环境因素的相关性,weÂ说明了与环境共生和整体模式的联系ofÂ内在微生物群落和发酵特性。本文综述了isÂ必要的toÂ研究和控制白酒发酵过程的整个生态条件ofÂ,旨在toÂ了解微生物动态ofÂ确保aÂ传统发酵环境的质量控制。
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引用次数: 0
Selection of drying technology based on dynamic effects on physicochemical properties and flavours of mulberry 基于桑树理化特性及风味动态影响的干燥工艺选择
IF 1.3 4区 农林科学 Q3 Agricultural and Biological Sciences Pub Date : 2023-08-29 DOI: 10.17221/82/2023-cjfs
Baolin Han, Shulin Tian, Rong Fan, Rangfang Chen, Yu Wang, Hucheng Gong, Minghong Bian
: Mulberry is gaining attention for its potential health benefits. However, post-harvest deterioration of quality necessitates drying to prolong storage. This study aimed to investigate the effects of natural drying (ND), hot air drying (HAD), and vacuum freeze drying (VFD) on bioactive compounds and volatile organic compounds of fresh mulberries. The results showed that VFD had the highest retention of total phenols (5 553.87 ± 744.97 µg GAE·g –1 ) (GAE – gallic acid equivalent), total flavonoids (3 575.51 ± 465.98 µg rutin·g –1 ), and total anthocyanins (64.98 ± 13.15 µg C3C·g –1 ) after prolonged drying. Additionally, flavour was identified as the most important indicator influencing consumer preference for dried mulberries, and VFD was found to be effective in retaining the natural flavours of mulberries. Although thermal treatment leads to a significant loss of organic compounds, HAD showed good retention of active substances and lower energy consumption in a shorter processing time.
:桑椹因其潜在的健康益处而日益受到关注。然而,收获后质量的恶化需要干燥以延长储存时间。本研究旨在研究自然干燥(ND)、热风干燥(HAD)和真空冷冻干燥(VFD)对新鲜桑椹生物活性化合物和挥发性有机化合物的影响。结果表明,VFD在长期干燥后对总酚(553.87±744.97µg GAE·g–1)(GAE–没食子酸当量)、总黄酮(575.51±465.98µg芦丁·g–2)和总花青素(64.98±13.15µg C3C·g–3)的保留率最高。此外,风味被确定为影响消费者对桑椹干偏好的最重要指标,VFD被发现可以有效地保留桑椹的天然风味。尽管热处理会导致有机化合物的显著损失,但HAD在较短的处理时间内表现出对活性物质的良好保留和较低的能耗。
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引用次数: 0
Extraction and enzymatic modification of dietary fibre from purple aubergine 紫茄子膳食纤维的提取及酶改性研究
IF 1.3 4区 农林科学 Q3 Agricultural and Biological Sciences Pub Date : 2023-08-29 DOI: 10.17221/84/2023-cjfs
S. Fong-in, Kamonlak Wicharaew, Pattaramon Phalapan, Trakul Prommajak
: This research scrutinised the opportunity of upcycling waste from the food industry by extracting dietary fibre from purple aubergine. One of the challenges addressed was enzymatic browning, which negatively influenced the quality of the fibre extracted from fresh aubergine. Various pre-treatment procedures were assessed, including using citric acid, sulphite immersion, peeling and thermal processing, to determine their effects on extraction yield, colour, and the functionality of the resultant dietary fibre. Findings indicated that a pre-treatment method involving aubergine peeling, sulphite solution immersion, and subsequent steaming before extraction produced optimal results, enhancing both whiteness index and water-holding capacity. Experiments were conducted with traditional enzymes supplemented with cellulase, xylanase, and lipase for enzymatic extraction. The addition of lipase notably elevated the extraction yield and water-holding capacity, albeit with an undesired darkening effect on the dietary fibre. In contrast, the application of xylanase emerged as the most effective treatment, delivering the highest overall quality for the derived dietary fibre.
:这项研究通过从紫茄子中提取膳食纤维,仔细研究了食品工业废物升级循环的机会。所面临的挑战之一是酶促褐变,这对从新鲜茄子中提取的纤维的质量产生了负面影响。评估了各种预处理程序,包括使用柠檬酸、亚硫酸盐浸渍、去皮和热处理,以确定其对提取率、颜色和所得膳食纤维功能的影响。研究结果表明,包括茄子去皮、亚硫酸盐溶液浸泡和随后的提取前蒸汽处理的预处理方法产生了最佳效果,提高了白度指数和持水能力。实验用添加纤维素酶、木聚糖酶和脂肪酶的传统酶进行酶提取。脂肪酶的加入显著提高了提取率和保水能力,尽管对膳食纤维有不希望的变黑作用。相反,木聚糖酶的应用成为最有效的处理方法,为衍生的膳食纤维提供最高的整体质量。
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引用次数: 0
期刊
Czech Journal of Food Sciences
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