Not a chemist, but AFAIK current market available 'biostarch polymers' (AFAIK always PLA; which may be marketed as made from corn, sugar cane, etc.) are actually extremely environmentally unfriendly because of the massive embodied energy required to create the industry-ready polymer from the bio-waste material. Their single benefit is nominal biodegradability.
It is far better for the environment if single use plastics are just minimized, for example by re-using all containers in your supply chain. This has therefore been our focus.
For the last mile to the consumer, however, it's unfortunate that people are now used to disposables, so it's likely going to take a technology shift like Dr. Zhu's or an improved form of traditional techniques such as palm leaf wrapping (common in South and Southeast Asia) or single-use clay pottery (India) to improve the situation.
Our company have been considering sponsoring an open robotics challenge in this space (commercially viable deployments of traditional palm leaf wrapping). If anyone would like to co-sponsor, get in touch.