College of Animal Sciences, Zhejiang Univ, Hangzhou 310058, China.
J Food Sci. 2012 Jun;77(6):S247-52. doi: 10.1111/j.1750-3841.2012.02726.x.
Royal jelly is one of the most important products of honeybees. Given its role in development of bee brood into fertile individuals of the royal caste it is also used in health products for human consumption. Royal jelly spoils and loses its health-promoting properties depending on storage duration and conditions. To ensure product quality before selling, it is therefore necessary to assess royal jelly freshness. Many indexes of freshness have been suggested, but they all lack reliability or require complex and time-consuming analyses. Here we describe a method to detect royal jelly freshness based on a chromogenic reaction between royal jelly and HCl. We demonstrate that analyses based on color parameters allow for the discrimination of royal jelly samples based on the duration of their storage. Color parameters of royal jelly stored at -18 and 4 °C for 28 d remained comparable to that of fresh samples, which supports the reliability of the method. The method of freshness determination described is practical, cheap, and fast and can thus be used in real-time when trading royal jelly.
The method developed can be used to assess royal jelly freshness. It is practical, cheap, and fast and can thus be used in real-time when trading royal jelly.
蜂王浆是蜜蜂最重要的产品之一。由于它在将蜂蛹发育成有生殖能力的蜂王群体中的作用，因此也被用于人类消费的保健品中。蜂王浆的保质期和保存条件会影响其保鲜度和促进健康的特性。因此，为了在销售前确保产品质量，有必要评估蜂王浆的新鲜度。已经提出了许多新鲜度指标，但它们都缺乏可靠性，或者需要复杂和耗时的分析。在这里，我们描述了一种基于蜂王浆与 HCl 之间显色反应的蜂王浆新鲜度检测方法。我们证明，基于颜色参数的分析可以根据蜂王浆储存时间来区分蜂王浆样品。在-18 和 4°C 下储存 28 天的蜂王浆的颜色参数与新鲜样品相比保持不变，这支持了该方法的可靠性。所描述的新鲜度测定方法实用、便宜且快速，因此在交易蜂王浆时可以实时使用。
开发的方法可用于评估蜂王浆的新鲜度。它实用、便宜且快速，因此在交易蜂王浆时可以实时使用。
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